Problems with custom amp...

[Jack A. Zucker]

I bought this thing from a small amp builder. I thought it was a good deal.
Let me just say that folks were right and that you get what you pay for.

Anyway, it's basically a 50 watt Fender Reverb, single channel style amp.
375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
Bassman size output transformer, no choke, yada-yada. Slight variations upon
the AB763 circuit, minus the vibrato.

This thing has been a nightmare from the beginning. Speaker that didn't fit,
power tranny center-tap not connected, ground side of screen supply filter
cap not connected, cold solder joints, non shielded wires going to the dwell
control (causing squealing), power tranny getting EXTREMELY hot, power
supply and screen grid caps rated at 450V though they are seeing 475V,
yada-yada.

I've got everything fixed (including changing all audio components to AB763
values). The outstanding issues are the power transformer overheating and
the underrated filter supply caps. I have a quad of 350V 100uf caps on order
to run in a totem-pole arrangement (original value was 47uf) but I'm not
sure how I'll fit them in because they are currently on the board and
there's not room for 4, side by side or 2 stacked (it's a 2" high chassis
and the board is .75" up from the bottom. One idea is to cut holes in the
board and stack the caps using cable ties and RTV to hold them together.
There's no room under the chassi unless I want to mount the 4 caps on the
opposite underside of the chassis from the power tranny.

Another option would be to play it close to the hilt and try to find 47uf
500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
chassis. Not sure I want to drill a huge hole in the chassis and even if I
do, I'd have to put it on the opposite side due to space considerations...

The other possibly larger problem is the power transformer. It's made by
handwound transformers.com. I've heard many nightmares about them. It's a
375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
rectifier tap. Even at practice volumes and a fan blowing on the tubes and
the transformer, it get so hot that the chassis is almost too hot to touch.
The fan keeps the tubes very cool so I know know it's the transformer
itself.

I tried putting in a weber copper cap to see if not drawing down the
rectifier heater would make a difference. Since this transformer is a tad
too hot for my use, I think I may look into getting a decent quality
350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a ct)

If I wanted to ditch the rectifier tube and go with a full wave bridge
rectifier (w/no centertap), In that case since I wouldn't be using the
rectifier tube I'd probably go with a 330-330 of 340-340 transformer. anyone
have any recommendations? Yes, I know I should use google. I will

P.S.

I don't want to go off on a tangent but this one is the 2nd amp I got from
him. The first one had even more problems. I could have returned this amp
but I would have been charged shipping 4 ways (for 2 amps) including fedex
overnight to get the first one back so we worked out a deal where he sent me
a $200 rebate and I agreed to fix the amp myself...

P.P.S.

I hope this is enough information. I don't want to get accused of trolling
again... :-)

[Rick Ross]

this is the guy from Vermont who builds them part time?

"Jack A. Zucker" <jaz@jackzucker.com> wrote in message
news:%UK0b.13015$2Y6.4057255@news2.news.adelphia.n et...
> I bought this thing from a small amp builder. I thought it was a good
deal.
> Let me just say that folks were right and that you get what you pay for.
>
> Anyway, it's basically a 50 watt Fender Reverb, single channel style amp.
> 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
> Bassman size output transformer, no choke, yada-yada. Slight variations
upon
> the AB763 circuit, minus the vibrato.
>
> This thing has been a nightmare from the beginning. Speaker that didn't
fit,
> power tranny center-tap not connected, ground side of screen supply filter
> cap not connected, cold solder joints, non shielded wires going to the
dwell
> control (causing squealing), power tranny getting EXTREMELY hot, power
> supply and screen grid caps rated at 450V though they are seeing 475V,
> yada-yada.
>
> I've got everything fixed (including changing all audio components to
AB763
> values). The outstanding issues are the power transformer overheating and
> the underrated filter supply caps. I have a quad of 350V 100uf caps on
order
> to run in a totem-pole arrangement (original value was 47uf) but I'm not
> sure how I'll fit them in because they are currently on the board and
> there's not room for 4, side by side or 2 stacked (it's a 2" high chassis
> and the board is .75" up from the bottom. One idea is to cut holes in the
> board and stack the caps using cable ties and RTV to hold them together.
> There's no room under the chassi unless I want to mount the 4 caps on the
> opposite underside of the chassis from the power tranny.
>
> Another option would be to play it close to the hilt and try to find 47uf
> 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
> chassis. Not sure I want to drill a huge hole in the chassis and even if I
> do, I'd have to put it on the opposite side due to space considerations...
>
> The other possibly larger problem is the power transformer. It's made by
> handwound transformers.com. I've heard many nightmares about them. It's a
> 375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
> rectifier tap. Even at practice volumes and a fan blowing on the tubes and
> the transformer, it get so hot that the chassis is almost too hot to
touch.
> The fan keeps the tubes very cool so I know know it's the transformer
> itself.
>
> I tried putting in a weber copper cap to see if not drawing down the
> rectifier heater would make a difference. Since this transformer is a tad
> too hot for my use, I think I may look into getting a decent quality
> 350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
> 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a ct)
>
> If I wanted to ditch the rectifier tube and go with a full wave bridge
> rectifier (w/no centertap), In that case since I wouldn't be using the
> rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
anyone
> have any recommendations? Yes, I know I should use google. I will
>
> P.S.
>
> I don't want to go off on a tangent but this one is the 2nd amp I got from
> him. The first one had even more problems. I could have returned this amp
> but I would have been charged shipping 4 ways (for 2 amps) including fedex
> overnight to get the first one back so we worked out a deal where he sent
me
> a $200 rebate and I agreed to fix the amp myself...
>
> P.P.S.
>
> I hope this is enough information. I don't want to get accused of trolling
> again... :-)
>
>

[Pt]

It might be a good idea to let everyone know just who this person or
company is.
It could prevent us from getting burnt.

Pt

[Rick Ross]

Winnie? or something like that? I think that's the guy...


"Pt" <peatea@yahoo.com> wrote in message
news:spv6kvsun6e84cr30vpn7khmharsl992bs@4ax.com...
> It might be a good idea to let everyone know just who this person or
> company is.
> It could prevent us from getting burnt.
>
> Pt

[Gantt Mann Kushner]

Hey Jack,

I don't get it... If you had even more problems w/ the first amp you bought
why did you buy a second one?

Gantt

"Jack A. Zucker" wrote:

> I bought this thing from a small amp builder. I thought it was a good deal.
> Let me just say that folks were right and that you get what you pay for.
>
>
>
> P.S.
>
> I don't want to go off on a tangent but this one is the 2nd amp I got from
> him. The first one had even more problems. I could have returned this amp
> but I would have been charged shipping 4 ways (for 2 amps) including fedex
> overnight to get the first one back so we worked out a deal where he sent me
> a $200 rebate and I agreed to fix the amp myself...
>
> P.P.S.
>
> I hope this is enough information. I don't want to get accused of trolling
> again... :-)

[Jack A. Zucker]

"Gantt Mann Kushner" <gizmo@his.com> wrote in message
news:3F4382B6.D59F1E4E@his.com...
> Hey Jack,
>
> I don't get it... If you had even more problems w/ the first amp you
bought
> why did you buy a second one?

I exchanged the first one for the 2nd one.

[Margaret Wilson]

Wow, this is a really terrible story. I'm sorry you've had so much trouble,
Jack.

Regards,

Margaret

"Jack A. Zucker" <jaz@jackzucker.com> wrote in message
news:%UK0b.13015$2Y6.4057255@news2.news.adelphia.n et...
> I bought this thing from a small amp builder. I thought it was a good
deal.
> Let me just say that folks were right and that you get what you pay for.
>
> Anyway, it's basically a 50 watt Fender Reverb, single channel style amp.
> 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
> Bassman size output transformer, no choke, yada-yada. Slight variations
upon
> the AB763 circuit, minus the vibrato.
>
> This thing has been a nightmare from the beginning. Speaker that didn't
fit,
> power tranny center-tap not connected, ground side of screen supply filter
> cap not connected, cold solder joints, non shielded wires going to the
dwell
> control (causing squealing), power tranny getting EXTREMELY hot, power
> supply and screen grid caps rated at 450V though they are seeing 475V,
> yada-yada.
>
> I've got everything fixed (including changing all audio components to
AB763
> values). The outstanding issues are the power transformer overheating and
> the underrated filter supply caps. I have a quad of 350V 100uf caps on
order
> to run in a totem-pole arrangement (original value was 47uf) but I'm not
> sure how I'll fit them in because they are currently on the board and
> there's not room for 4, side by side or 2 stacked (it's a 2" high chassis
> and the board is .75" up from the bottom. One idea is to cut holes in the
> board and stack the caps using cable ties and RTV to hold them together.
> There's no room under the chassi unless I want to mount the 4 caps on the
> opposite underside of the chassis from the power tranny.
>
> Another option would be to play it close to the hilt and try to find 47uf
> 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
> chassis. Not sure I want to drill a huge hole in the chassis and even if I
> do, I'd have to put it on the opposite side due to space considerations...
>
> The other possibly larger problem is the power transformer. It's made by
> handwound transformers.com. I've heard many nightmares about them. It's a
> 375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
> rectifier tap. Even at practice volumes and a fan blowing on the tubes and
> the transformer, it get so hot that the chassis is almost too hot to
touch.
> The fan keeps the tubes very cool so I know know it's the transformer
> itself.
>
> I tried putting in a weber copper cap to see if not drawing down the
> rectifier heater would make a difference. Since this transformer is a tad
> too hot for my use, I think I may look into getting a decent quality
> 350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
> 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a ct)
>
> If I wanted to ditch the rectifier tube and go with a full wave bridge
> rectifier (w/no centertap), In that case since I wouldn't be using the
> rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
anyone
> have any recommendations? Yes, I know I should use google. I will
>
> P.S.
>
> I don't want to go off on a tangent but this one is the 2nd amp I got from
> him. The first one had even more problems. I could have returned this amp
> but I would have been charged shipping 4 ways (for 2 amps) including fedex
> overnight to get the first one back so we worked out a deal where he sent
me
> a $200 rebate and I agreed to fix the amp myself...
>
> P.P.S.
>
> I hope this is enough information. I don't want to get accused of trolling
> again... :-)
>
>

[Tony Hwang]

Hi,
Hmmmm, sounds like he knows a lot about amps. How come didn't he build
them himself then rather than letting someone do it for him?
What kind of tech would do that kind of shoddy job? Is he really
qualified tech? And yet order another one after first disaster?
Or am I missing something here?
What a weird story!
Tony

Margaret Wilson wrote:
> Wow, this is a really terrible story. I'm sorry you've had so much trouble,
> Jack.
>
> Regards,
>
> Margaret
>
> "Jack A. Zucker" <jaz@jackzucker.com> wrote in message
> news:%UK0b.13015$2Y6.4057255@news2.news.adelphia.n et...
>
>>I bought this thing from a small amp builder. I thought it was a good
>
> deal.
>
>>Let me just say that folks were right and that you get what you pay for.
>>
>>Anyway, it's basically a 50 watt Fender Reverb, single channel style amp.
>>375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
>>Bassman size output transformer, no choke, yada-yada. Slight variations
>
> upon
>
>>the AB763 circuit, minus the vibrato.
>>
>>This thing has been a nightmare from the beginning. Speaker that didn't
>
> fit,
>
>>power tranny center-tap not connected, ground side of screen supply filter
>>cap not connected, cold solder joints, non shielded wires going to the
>
> dwell
>
>>control (causing squealing), power tranny getting EXTREMELY hot, power
>>supply and screen grid caps rated at 450V though they are seeing 475V,
>>yada-yada.
>>
>>I've got everything fixed (including changing all audio components to
>
> AB763
>
>>values). The outstanding issues are the power transformer overheating and
>>the underrated filter supply caps. I have a quad of 350V 100uf caps on
>
> order
>
>>to run in a totem-pole arrangement (original value was 47uf) but I'm not
>>sure how I'll fit them in because they are currently on the board and
>>there's not room for 4, side by side or 2 stacked (it's a 2" high chassis
>>and the board is .75" up from the bottom. One idea is to cut holes in the
>>board and stack the caps using cable ties and RTV to hold them together.
>>There's no room under the chassi unless I want to mount the 4 caps on the
>>opposite underside of the chassis from the power tranny.
>>
>>Another option would be to play it close to the hilt and try to find 47uf
>>500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
>>chassis. Not sure I want to drill a huge hole in the chassis and even if I
>>do, I'd have to put it on the opposite side due to space considerations...
>>
>>The other possibly larger problem is the power transformer. It's made by
>>handwound transformers.com. I've heard many nightmares about them. It's a
>>375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
>>rectifier tap. Even at practice volumes and a fan blowing on the tubes and
>>the transformer, it get so hot that the chassis is almost too hot to
>
> touch.
>
>>The fan keeps the tubes very cool so I know know it's the transformer
>>itself.
>>
>> I tried putting in a weber copper cap to see if not drawing down the
>>rectifier heater would make a difference. Since this transformer is a tad
>>too hot for my use, I think I may look into getting a decent quality
>>350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
>>350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a ct)
>>
>>If I wanted to ditch the rectifier tube and go with a full wave bridge
>>rectifier (w/no centertap), In that case since I wouldn't be using the
>>rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
>
> anyone
>
>>have any recommendations? Yes, I know I should use google. I will
>>
>>P.S.
>>
>>I don't want to go off on a tangent but this one is the 2nd amp I got from
>>him. The first one had even more problems. I could have returned this amp
>>but I would have been charged shipping 4 ways (for 2 amps) including fedex
>>overnight to get the first one back so we worked out a deal where he sent
>
> me
>
>>a $200 rebate and I agreed to fix the amp myself...
>>
>>P.P.S.
>>
>>I hope this is enough information. I don't want to get accused of trolling
>>again... :-)
>>
>>
>
>
>

[Steve Modica]

The cold solder joint thing makes me think the amp tech doesn't know
what he's doing. What amp tech can't solder correctly?

Tony Hwang wrote:
> Hi,
> Hmmmm, sounds like he knows a lot about amps. How come didn't he build
> them himself then rather than letting someone do it for him?
> What kind of tech would do that kind of shoddy job? Is he really
> qualified tech? And yet order another one after first disaster?
> Or am I missing something here?
> What a weird story!
> Tony
>
> Margaret Wilson wrote:
>
>> Wow, this is a really terrible story. I'm sorry you've had so much
>> trouble,
>> Jack.
>>
>> Regards,
>>
>> Margaret
>>
>> "Jack A. Zucker" <jaz@jackzucker.com> wrote in message
>> news:%UK0b.13015$2Y6.4057255@news2.news.adelphia.n et...
>>
>>> I bought this thing from a small amp builder. I thought it was a good
>>
>>
>> deal.
>>
>>> Let me just say that folks were right and that you get what you pay for.
>>>
>>> Anyway, it's basically a 50 watt Fender Reverb, single channel style
>>> amp.
>>> 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
>>> Bassman size output transformer, no choke, yada-yada. Slight variations
>>
>>
>> upon
>>
>>> the AB763 circuit, minus the vibrato.
>>>
>>> This thing has been a nightmare from the beginning. Speaker that didn't
>>
>>
>> fit,
>>
>>> power tranny center-tap not connected, ground side of screen supply
>>> filter
>>> cap not connected, cold solder joints, non shielded wires going to the
>>
>>
>> dwell
>>
>>> control (causing squealing), power tranny getting EXTREMELY hot, power
>>> supply and screen grid caps rated at 450V though they are seeing 475V,
>>> yada-yada.
>>>
>>> I've got everything fixed (including changing all audio components to
>>
>>
>> AB763
>>
>>> values). The outstanding issues are the power transformer overheating
>>> and
>>> the underrated filter supply caps. I have a quad of 350V 100uf caps on
>>
>>
>> order
>>
>>> to run in a totem-pole arrangement (original value was 47uf) but I'm not
>>> sure how I'll fit them in because they are currently on the board and
>>> there's not room for 4, side by side or 2 stacked (it's a 2" high
>>> chassis
>>> and the board is .75" up from the bottom. One idea is to cut holes in
>>> the
>>> board and stack the caps using cable ties and RTV to hold them together.
>>> There's no room under the chassi unless I want to mount the 4 caps on
>>> the
>>> opposite underside of the chassis from the power tranny.
>>>
>>> Another option would be to play it close to the hilt and try to find
>>> 47uf
>>> 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
>>> chassis. Not sure I want to drill a huge hole in the chassis and even
>>> if I
>>> do, I'd have to put it on the opposite side due to space
>>> considerations...
>>>
>>> The other possibly larger problem is the power transformer. It's made by
>>> handwound transformers.com. I've heard many nightmares about them.
>>> It's a
>>> 375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
>>> rectifier tap. Even at practice volumes and a fan blowing on the
>>> tubes and
>>> the transformer, it get so hot that the chassis is almost too hot to
>>
>>
>> touch.
>>
>>> The fan keeps the tubes very cool so I know know it's the transformer
>>> itself.
>>>
>>> I tried putting in a weber copper cap to see if not drawing down the
>>> rectifier heater would make a difference. Since this transformer is a
>>> tad
>>> too hot for my use, I think I may look into getting a decent quality
>>> 350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
>>> 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a ct)
>>>
>>> If I wanted to ditch the rectifier tube and go with a full wave bridge
>>> rectifier (w/no centertap), In that case since I wouldn't be using the
>>> rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
>>
>>
>> anyone
>>
>>> have any recommendations? Yes, I know I should use google. I will
>>>
>>> P.S.
>>>
>>> I don't want to go off on a tangent but this one is the 2nd amp I got
>>> from
>>> him. The first one had even more problems. I could have returned this
>>> amp
>>> but I would have been charged shipping 4 ways (for 2 amps) including
>>> fedex
>>> overnight to get the first one back so we worked out a deal where he
>>> sent
>>
>>
>> me
>>
>>> a $200 rebate and I agreed to fix the amp myself...
>>>
>>> P.P.S.
>>>
>>> I hope this is enough information. I don't want to get accused of
>>> trolling
>>> again... :-)
>>>
>>>
>>
>>
>>
>


--
Steve Modica
"Give a man a fish, and he will eat for a day, hit him with a fish and
he leaves you alone" - me

[Catalina Thunders]

Jack A. Zucker wrote:
> I bought this thing from a small amp builder. I thought it was a good deal.
> Let me just say that folks were right and that you get what you pay for.
>
> Anyway, it's basically a 50 watt Fender Reverb, single channel style amp.
> 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
> Bassman size output transformer, no choke, yada-yada. Slight variations upon
> the AB763 circuit, minus the vibrato.
>
> This thing has been a nightmare from the beginning. Speaker that didn't fit,
> power tranny center-tap not connected, ground side of screen supply filter
> cap not connected, cold solder joints, non shielded wires going to the dwell
> control (causing squealing), power tranny getting EXTREMELY hot, power
> supply and screen grid caps rated at 450V though they are seeing 475V,
> yada-yada.
>
> I've got everything fixed (including changing all audio components to AB763
> values). The outstanding issues are the power transformer overheating and
> the underrated filter supply caps. I have a quad of 350V 100uf caps on order
> to run in a totem-pole arrangement (original value was 47uf) but I'm not
> sure how I'll fit them in because they are currently on the board and
> there's not room for 4, side by side or 2 stacked (it's a 2" high chassis
> and the board is .75" up from the bottom. One idea is to cut holes in the
> board and stack the caps using cable ties and RTV to hold them together.
> There's no room under the chassi unless I want to mount the 4 caps on the
> opposite underside of the chassis from the power tranny.
>
> Another option would be to play it close to the hilt and try to find 47uf
> 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
> chassis. Not sure I want to drill a huge hole in the chassis and even if I
> do, I'd have to put it on the opposite side due to space considerations...
>
> The other possibly larger problem is the power transformer. It's made by
> handwound transformers.com. I've heard many nightmares about them. It's a
> 375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
> rectifier tap. Even at practice volumes and a fan blowing on the tubes and
> the transformer, it get so hot that the chassis is almost too hot to touch.
> The fan keeps the tubes very cool so I know know it's the transformer
> itself.
>
> I tried putting in a weber copper cap to see if not drawing down the
> rectifier heater would make a difference. Since this transformer is a tad
> too hot for my use, I think I may look into getting a decent quality
> 350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
> 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a ct)
>
> If I wanted to ditch the rectifier tube and go with a full wave bridge
> rectifier (w/no centertap), In that case since I wouldn't be using the
> rectifier tube I'd probably go with a 330-330 of 340-340 transformer. anyone
> have any recommendations? Yes, I know I should use google. I will
>
> P.S.
>
> I don't want to go off on a tangent but this one is the 2nd amp I got from
> him. The first one had even more problems. I could have returned this amp
> but I would have been charged shipping 4 ways (for 2 amps) including fedex
> overnight to get the first one back so we worked out a deal where he sent me
> a $200 rebate and I agreed to fix the amp myself...
>
> P.P.S.
>
> I hope this is enough information. I don't want to get accused of trolling
> again... :-)
>
>


It's probably a good idea to get tough with this "amp builder", there
are recourses. My guess would be he doesn't want bad publicity &/or an
investigation into his "business", so I'd make some threats along those
lines & see if you can get a refund.

There's really nothing more aggravating (or time consuming) than trying
to fix what someone elsa has botched --- I'd save that as a last resort
if I were you. Keeping quiet about it & fixing it yourself is just going
to help this guy go on ripping people off.

Good luck,

Cat

[thom_j.]

"Jack A. Zucker" wrote:
> P.P.S.
> I hope this is enough information. I don't want to get accused of trolling
> again... :-)

Could you elaborate please? :8^)'....

[ryanm]

"Jack A. Zucker" <jaz@jackzucker.com> wrote in message
news:%UK0b.13015$2Y6.4057255@news2.news.adelphia.n et...
> I bought this thing from a small amp builder. I thought it was a good
deal.
> Let me just say that folks were right and that you get what you pay for.
>
Sounds like you should've built your own amp. It would've cost less, no
shipping, and you could've made sure everything worked the way you want it
to...

ryanm

[Tony Hwang]

Hi,
If he starts fixing builder's mess, it could be negative thing.
The builder can blame him saying you messed up the amp I built.
Tony

Catalina Thunders wrote:

>
>
> Jack A. Zucker wrote:
>
>> I bought this thing from a small amp builder. I thought it was a good
>> deal.
>> Let me just say that folks were right and that you get what you pay for.
>>
>> Anyway, it's basically a 50 watt Fender Reverb, single channel style amp.
>> 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
>> Bassman size output transformer, no choke, yada-yada. Slight
>> variations upon
>> the AB763 circuit, minus the vibrato.
>>
>> This thing has been a nightmare from the beginning. Speaker that
>> didn't fit,
>> power tranny center-tap not connected, ground side of screen supply
>> filter
>> cap not connected, cold solder joints, non shielded wires going to the
>> dwell
>> control (causing squealing), power tranny getting EXTREMELY hot, power
>> supply and screen grid caps rated at 450V though they are seeing 475V,
>> yada-yada.
>>
>> I've got everything fixed (including changing all audio components to
>> AB763
>> values). The outstanding issues are the power transformer overheating and
>> the underrated filter supply caps. I have a quad of 350V 100uf caps on
>> order
>> to run in a totem-pole arrangement (original value was 47uf) but I'm not
>> sure how I'll fit them in because they are currently on the board and
>> there's not room for 4, side by side or 2 stacked (it's a 2" high chassis
>> and the board is .75" up from the bottom. One idea is to cut holes in the
>> board and stack the caps using cable ties and RTV to hold them together.
>> There's no room under the chassi unless I want to mount the 4 caps on the
>> opposite underside of the chassis from the power tranny.
>>
>> Another option would be to play it close to the hilt and try to find 47uf
>> 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
>> chassis. Not sure I want to drill a huge hole in the chassis and even
>> if I
>> do, I'd have to put it on the opposite side due to space
>> considerations...
>>
>> The other possibly larger problem is the power transformer. It's made by
>> handwound transformers.com. I've heard many nightmares about them. It's a
>> 375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
>> rectifier tap. Even at practice volumes and a fan blowing on the tubes
>> and
>> the transformer, it get so hot that the chassis is almost too hot to
>> touch.
>> The fan keeps the tubes very cool so I know know it's the transformer
>> itself.
>>
>> I tried putting in a weber copper cap to see if not drawing down the
>> rectifier heater would make a difference. Since this transformer is a tad
>> too hot for my use, I think I may look into getting a decent quality
>> 350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
>> 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a ct)
>>
>> If I wanted to ditch the rectifier tube and go with a full wave bridge
>> rectifier (w/no centertap), In that case since I wouldn't be using the
>> rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
>> anyone
>> have any recommendations? Yes, I know I should use google. I will
>>
>> P.S.
>>
>> I don't want to go off on a tangent but this one is the 2nd amp I got
>> from
>> him. The first one had even more problems. I could have returned this amp
>> but I would have been charged shipping 4 ways (for 2 amps) including
>> fedex
>> overnight to get the first one back so we worked out a deal where he
>> sent me
>> a $200 rebate and I agreed to fix the amp myself...
>>
>> P.P.S.
>>
>> I hope this is enough information. I don't want to get accused of
>> trolling
>> again... :-)
>>
>>
>
>
> It's probably a good idea to get tough with this "amp builder", there
> are recourses. My guess would be he doesn't want bad publicity &/or an
> investigation into his "business", so I'd make some threats along those
> lines & see if you can get a refund.
>
> There's really nothing more aggravating (or time consuming) than trying
> to fix what someone elsa has botched --- I'd save that as a last resort
> if I were you. Keeping quiet about it & fixing it yourself is just going
> to help this guy go on ripping people off.
>
> Good luck,
>
> Cat
>

[LarryV]

Winfield Thomas?

Personally, I'd be pretty pissed with all of those issues. Sounds like
there's no testing being done on the amps before they leave. Slap them
together and hope they work. I've heard similar stories related to
other "boutique" amp builders. Makes me believe that just because an
amp is handbuilt doesn't necessarily insure that it's a quality amp.
The amp that I would like to check out though is the Revelator from
Gerlitz.

http://www.gerlitzamps.com/

These sound like really nice amps, and I received email that they will
soon be posting sound samples at the site. Harvey has made some tweaks
to make the amps even better.

Pt <peatea@yahoo.com> wrote in message news:<spv6kvsun6e84cr30vpn7khmharsl992bs@4ax.com>...
> It might be a good idea to let everyone know just who this person or
> company is.
> It could prevent us from getting burnt.
>
> Pt

[Richard]

larryv@rcn.com wrote...

> Personally, I'd be pretty pissed with all of those issues. Sounds like
> there's no testing being done on the amps before they leave. Slap them
> together and hope they work.

I had that happen with an expensive Two Rock a couple of years back.
The second channel was shorted out. Last time I ever bit off on the
"boutique mystique," I'll tell ya.

--
Afghanistan : Russia -> Iraq : USA

[Jack A. Zucker]

"Catalina Thunders" <thundercatt13@nospamsbcglobal.net> wrote in message
news:15O0b.2582
> It's probably a good idea to get tough with this "amp builder", there
> are recourses. My guess would be he doesn't want bad publicity &/or an
> investigation into his "business", so I'd make some threats along those
> lines & see if you can get a refund.

Too late. We already negotiated. His offer was to return it minus shipping
or accept the $200. I accepted the $200. I can't start insisting now that I
want my money back when I've accepted it as-is. He could do that in good
faith but he won't.

Jaz

[Greg D]

Jack,

That is just too much crap to go thru for a new amp. I complaiend aobut
my new amps when I had to swpa out a speaker or th preamp tubes, but what
you are going through - whew...

Greg

> I bought this thing from a small amp builder. I thought it was a good
> deal. Let me just say that folks were right and that you get what you
> pay for.
>
> Anyway, it's basically a 50 watt Fender Reverb, single channel style
> amp. 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes,
> big BF Bassman size output transformer, no choke, yada-yada. Slight
> variations upon the AB763 circuit, minus the vibrato.
>
> This thing has been a nightmare from the beginning. Speaker that
> didn't fit, power tranny center-tap not connected, ground side of
> screen supply filter cap not connected, cold solder joints, non
> shielded wires going to the dwell control (causing squealing), power
> tranny getting EXTREMELY hot, power supply and screen grid caps rated
> at 450V though they are seeing 475V, yada-yada.
>
> I've got everything fixed (including changing all audio components to
> AB763 values). The outstanding issues are the power transformer
> overheating and the underrated filter supply caps. I have a quad of
> 350V 100uf caps on order to run in a totem-pole arrangement (original
> value was 47uf) but I'm not sure how I'll fit them in because they are
> currently on the board and there's not room for 4, side by side or 2
> stacked (it's a 2" high chassis and the board is .75" up from the
> bottom. One idea is to cut holes in the board and stack the caps using
> cable ties and RTV to hold them together. There's no room under the
> chassi unless I want to mount the 4 caps on the opposite underside of
> the chassis from the power tranny.
>
> Another option would be to play it close to the hilt and try to find
> 47uf 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside
> the chassis. Not sure I want to drill a huge hole in the chassis and
> even if I do, I'd have to put it on the opposite side due to space
> considerations...
>
> The other possibly larger problem is the power transformer. It's made
> by handwound transformers.com. I've heard many nightmares about them.
> It's a 375-0-375 tranny and it's rated for 6A on the heater tap and 3A
> on the rectifier tap. Even at practice volumes and a fan blowing on
> the tubes and the transformer, it get so hot that the chassis is
> almost too hot to touch. The fan keeps the tubes very cool so I know
> know it's the transformer itself.
>
> I tried putting in a weber copper cap to see if not drawing down the
> rectifier heater would make a difference. Since this transformer is a
> tad too hot for my use, I think I may look into getting a decent
> quality 350-0-350 transformer. Something like the Hammond 273X (120VA,
> sec. 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @
> 4.0a ct)
>
> If I wanted to ditch the rectifier tube and go with a full wave bridge
> rectifier (w/no centertap), In that case since I wouldn't be using the
> rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
> anyone have any recommendations? Yes, I know I should use google. I
> will


>
> P.S.
>
> I don't want to go off on a tangent but this one is the 2nd amp I got
> from him. The first one had even more problems. I could have returned
> this amp but I would have been charged shipping 4 ways (for 2 amps)
> including fedex overnight to get the first one back so we worked out a
> deal where he sent me a $200 rebate and I agreed to fix the amp
> myself...
>
> P.P.S.
>
> I hope this is enough information. I don't want to get accused of
> trolling again... :-)
>
>

[Jack A. Zucker]

Well,

What can I do?!? Even though I agree it's a total ripoff, it's not out of
the ordinary for an amp maker to charge you shipping when you return an
item. I pointed out to this guy that it wasn't just that I didn't like it or
that I changed my mind. This thing had VERY serious design problems. He was
non-plussed. My choice was keep it and the $200 or send it back minus all
the shipping which came to a considerable amount because the first one was
returned fed-ex next-day-air (at his request and promise to pay)...

Anyway, we're way off topic. I'm trying to get opinions on how to fix the
technical issues. The only reason I went into such detail is that the last
time I tried to only disclose part of the information, I was accused of
being a troll. (See my post about 6V6 tubes and the 5Y3 in a 6L6 amp for
details) :-)

"Greg D" <oasysco@cox.net> wrote in message
news:Xns93DDBC44DC916oasyscocoxnet@68.1.17.6...
> Jack,
>
> That is just too much crap to go thru for a new amp. I complaiend aobut
> my new amps when I had to swpa out a speaker or th preamp tubes, but what
> you are going through - whew...
>
> Greg
>
> > I bought this thing from a small amp builder. I thought it was a good
> > deal. Let me just say that folks were right and that you get what you
> > pay for.
> >
> > Anyway, it's basically a 50 watt Fender Reverb, single channel style
> > amp. 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes,
> > big BF Bassman size output transformer, no choke, yada-yada. Slight
> > variations upon the AB763 circuit, minus the vibrato.
> >
> > This thing has been a nightmare from the beginning. Speaker that
> > didn't fit, power tranny center-tap not connected, ground side of
> > screen supply filter cap not connected, cold solder joints, non
> > shielded wires going to the dwell control (causing squealing), power
> > tranny getting EXTREMELY hot, power supply and screen grid caps rated
> > at 450V though they are seeing 475V, yada-yada.
> >
> > I've got everything fixed (including changing all audio components to
> > AB763 values). The outstanding issues are the power transformer
> > overheating and the underrated filter supply caps. I have a quad of
> > 350V 100uf caps on order to run in a totem-pole arrangement (original
> > value was 47uf) but I'm not sure how I'll fit them in because they are
> > currently on the board and there's not room for 4, side by side or 2
> > stacked (it's a 2" high chassis and the board is .75" up from the
> > bottom. One idea is to cut holes in the board and stack the caps using
> > cable ties and RTV to hold them together. There's no room under the
> > chassi unless I want to mount the 4 caps on the opposite underside of
> > the chassis from the power tranny.
> >
> > Another option would be to play it close to the hilt and try to find
> > 47uf 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside
> > the chassis. Not sure I want to drill a huge hole in the chassis and
> > even if I do, I'd have to put it on the opposite side due to space
> > considerations...
> >
> > The other possibly larger problem is the power transformer. It's made
> > by handwound transformers.com. I've heard many nightmares about them.
> > It's a 375-0-375 tranny and it's rated for 6A on the heater tap and 3A
> > on the rectifier tap. Even at practice volumes and a fan blowing on
> > the tubes and the transformer, it get so hot that the chassis is
> > almost too hot to touch. The fan keeps the tubes very cool so I know
> > know it's the transformer itself.
> >
> > I tried putting in a weber copper cap to see if not drawing down the
> > rectifier heater would make a difference. Since this transformer is a
> > tad too hot for my use, I think I may look into getting a decent
> > quality 350-0-350 transformer. Something like the Hammond 273X (120VA,
> > sec. 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @
> > 4.0a ct)
> >
> > If I wanted to ditch the rectifier tube and go with a full wave bridge
> > rectifier (w/no centertap), In that case since I wouldn't be using the
> > rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
> > anyone have any recommendations? Yes, I know I should use google. I
> > will
>
>
> >
> > P.S.
> >
> > I don't want to go off on a tangent but this one is the 2nd amp I got
> > from him. The first one had even more problems. I could have returned
> > this amp but I would have been charged shipping 4 ways (for 2 amps)
> > including fedex overnight to get the first one back so we worked out a
> > deal where he sent me a $200 rebate and I agreed to fix the amp
> > myself...
> >
> > P.P.S.
> >
> > I hope this is enough information. I don't want to get accused of
> > trolling again... :-)
> >
> >
>

[NDB]

Hi Jack,

You've been exceptionally patient throughout this whole process. I think
you are doing everyone a service by letting us know your experiences.

Thanks,

Nenshad


--

-------------------------------------------------------------
A One-Man Jazz Band? Believe it!
http://www.cosmiccontamination.com
-------------------------------------------------------------


"Jack A. Zucker" <jaz@jackzucker.com> wrote in message
news:OPS0b.13177$2Y6.4155131@news2.news.adelphia.n et...
> Well,
>
> What can I do?!? Even though I agree it's a total ripoff, it's not out of
> the ordinary for an amp maker to charge you shipping when you return an
> item. I pointed out to this guy that it wasn't just that I didn't like it
or
> that I changed my mind. This thing had VERY serious design problems. He
was
> non-plussed. My choice was keep it and the $200 or send it back minus all
> the shipping which came to a considerable amount because the first one was
> returned fed-ex next-day-air (at his request and promise to pay)...
>
> Anyway, we're way off topic. I'm trying to get opinions on how to fix the
> technical issues. The only reason I went into such detail is that the last
> time I tried to only disclose part of the information, I was accused of
> being a troll. (See my post about 6V6 tubes and the 5Y3 in a 6L6 amp for
> details) :-)
>
> "Greg D" <oasysco@cox.net> wrote in message
> news:Xns93DDBC44DC916oasyscocoxnet@68.1.17.6...
> > Jack,
> >
> > That is just too much crap to go thru for a new amp. I complaiend aobut
> > my new amps when I had to swpa out a speaker or th preamp tubes, but
what
> > you are going through - whew...
> >
> > Greg
> >
> > > I bought this thing from a small amp builder. I thought it was a good
> > > deal. Let me just say that folks were right and that you get what you
> > > pay for.
> > >
> > > Anyway, it's basically a 50 watt Fender Reverb, single channel style
> > > amp. 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes,
> > > big BF Bassman size output transformer, no choke, yada-yada. Slight
> > > variations upon the AB763 circuit, minus the vibrato.
> > >
> > > This thing has been a nightmare from the beginning. Speaker that
> > > didn't fit, power tranny center-tap not connected, ground side of
> > > screen supply filter cap not connected, cold solder joints, non
> > > shielded wires going to the dwell control (causing squealing), power
> > > tranny getting EXTREMELY hot, power supply and screen grid caps rated
> > > at 450V though they are seeing 475V, yada-yada.
> > >
> > > I've got everything fixed (including changing all audio components to
> > > AB763 values). The outstanding issues are the power transformer
> > > overheating and the underrated filter supply caps. I have a quad of
> > > 350V 100uf caps on order to run in a totem-pole arrangement (original
> > > value was 47uf) but I'm not sure how I'll fit them in because they are
> > > currently on the board and there's not room for 4, side by side or 2
> > > stacked (it's a 2" high chassis and the board is .75" up from the
> > > bottom. One idea is to cut holes in the board and stack the caps using
> > > cable ties and RTV to hold them together. There's no room under the
> > > chassi unless I want to mount the 4 caps on the opposite underside of
> > > the chassis from the power tranny.
> > >
> > > Another option would be to play it close to the hilt and try to find
> > > 47uf 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside
> > > the chassis. Not sure I want to drill a huge hole in the chassis and
> > > even if I do, I'd have to put it on the opposite side due to space
> > > considerations...
> > >
> > > The other possibly larger problem is the power transformer. It's made
> > > by handwound transformers.com. I've heard many nightmares about them.
> > > It's a 375-0-375 tranny and it's rated for 6A on the heater tap and 3A
> > > on the rectifier tap. Even at practice volumes and a fan blowing on
> > > the tubes and the transformer, it get so hot that the chassis is
> > > almost too hot to touch. The fan keeps the tubes very cool so I know
> > > know it's the transformer itself.
> > >
> > > I tried putting in a weber copper cap to see if not drawing down the
> > > rectifier heater would make a difference. Since this transformer is a
> > > tad too hot for my use, I think I may look into getting a decent
> > > quality 350-0-350 transformer. Something like the Hammond 273X (120VA,
> > > sec. 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @
> > > 4.0a ct)
> > >
> > > If I wanted to ditch the rectifier tube and go with a full wave bridge
> > > rectifier (w/no centertap), In that case since I wouldn't be using the
> > > rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
> > > anyone have any recommendations? Yes, I know I should use google. I
> > > will
> >
> >
> > >
> > > P.S.
> > >
> > > I don't want to go off on a tangent but this one is the 2nd amp I got
> > > from him. The first one had even more problems. I could have returned
> > > this amp but I would have been charged shipping 4 ways (for 2 amps)
> > > including fedex overnight to get the first one back so we worked out a
> > > deal where he sent me a $200 rebate and I agreed to fix the amp
> > > myself...
> > >
> > > P.P.S.
> > >
> > > I hope this is enough information. I don't want to get accused of
> > > trolling again... :-)
> > >
> > >
> >
>
>

[Greg D]

Jack,

I wish I could offer a solution, but all I can do is stand there and
cluck my tongue - totally in sympathy with you.

THe thing is hand-wired and if he has a schematic, you might try RonSonic
(Ron Bales), Phil the AMp MEdic, or even LV over at AGA where I know you
hang out as well. Has anybody in AGA been any help, Jack?

THankfully, you know enough about circuits to have a fighting chance. Me?
I don't know what I"d do other than ***** 'n moan a whole lot louder than
you.

Keep us posted.

GReg

> Well,
>
> What can I do?!? Even though I agree it's a total ripoff, it's not out
> of the ordinary for an amp maker to charge you shipping when you
> return an item. I pointed out to this guy that it wasn't just that I
> didn't like it or that I changed my mind. This thing had VERY serious
> design problems. He was non-plussed. My choice was keep it and the
> $200 or send it back minus all the shipping which came to a
> considerable amount because the first one was returned fed-ex
> next-day-air (at his request and promise to pay)...
>
> Anyway, we're way off topic. I'm trying to get opinions on how to fix
> the technical issues. The only reason I went into such detail is that
> the last time I tried to only disclose part of the information, I was
> accused of being a troll. (See my post about 6V6 tubes and the 5Y3 in
> a 6L6 amp for details) :-)
>
> "Greg D" <oasysco@cox.net> wrote in message
> news:Xns93DDBC44DC916oasyscocoxnet@68.1.17.6...
>> Jack,
>>
>> That is just too much crap to go thru for a new amp. I complaiend
>> aobut my new amps when I had to swpa out a speaker or th preamp
>> tubes, but what you are going through - whew...
>>
>> Greg
>>
>> > I bought this thing from a small amp builder. I thought it was a
>> > good deal. Let me just say that folks were right and that you get
>> > what you pay for.
>> >
>> > Anyway, it's basically a 50 watt Fender Reverb, single channel
>> > style amp. 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7
>> > tubes, big BF Bassman size output transformer, no choke, yada-yada.
>> > Slight variations upon the AB763 circuit, minus the vibrato.
>> >
>> > This thing has been a nightmare from the beginning. Speaker that
>> > didn't fit, power tranny center-tap not connected, ground side of
>> > screen supply filter cap not connected, cold solder joints, non
>> > shielded wires going to the dwell control (causing squealing),
>> > power tranny getting EXTREMELY hot, power supply and screen grid
>> > caps rated at 450V though they are seeing 475V, yada-yada.
>> >
>> > I've got everything fixed (including changing all audio components
>> > to AB763 values). The outstanding issues are the power transformer
>> > overheating and the underrated filter supply caps. I have a quad of
>> > 350V 100uf caps on order to run in a totem-pole arrangement
>> > (original value was 47uf) but I'm not sure how I'll fit them in
>> > because they are currently on the board and there's not room for 4,
>> > side by side or 2 stacked (it's a 2" high chassis and the board is
>> > .75" up from the bottom. One idea is to cut holes in the board and
>> > stack the caps using cable ties and RTV to hold them together.
>> > There's no room under the chassi unless I want to mount the 4 caps
>> > on the opposite underside of the chassis from the power tranny.
>> >
>> > Another option would be to play it close to the hilt and try to
>> > find 47uf 500V caps or somehow try to fit an LCR 50uf/50uf 500V can
>> > inside the chassis. Not sure I want to drill a huge hole in the
>> > chassis and even if I do, I'd have to put it on the opposite side
>> > due to space considerations...
>> >
>> > The other possibly larger problem is the power transformer. It's
>> > made by handwound transformers.com. I've heard many nightmares
>> > about them. It's a 375-0-375 tranny and it's rated for 6A on the
>> > heater tap and 3A on the rectifier tap. Even at practice volumes
>> > and a fan blowing on the tubes and the transformer, it get so hot
>> > that the chassis is almost too hot to touch. The fan keeps the
>> > tubes very cool so I know know it's the transformer itself.
>> >
>> > I tried putting in a weber copper cap to see if not drawing down
>> > the
>> > rectifier heater would make a difference. Since this transformer is
>> > a tad too hot for my use, I think I may look into getting a decent
>> > quality 350-0-350 transformer. Something like the Hammond 273X
>> > (120VA, sec. 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a,
>> > Fil.#2(htr) 6.3v @ 4.0a ct)
>> >
>> > If I wanted to ditch the rectifier tube and go with a full wave
>> > bridge rectifier (w/no centertap), In that case since I wouldn't be
>> > using the rectifier tube I'd probably go with a 330-330 of 340-340
>> > transformer. anyone have any recommendations? Yes, I know I should
>> > use google. I will
>>
>>
>> >
>> > P.S.
>> >
>> > I don't want to go off on a tangent but this one is the 2nd amp I
>> > got from him. The first one had even more problems. I could have
>> > returned this amp but I would have been charged shipping 4 ways
>> > (for 2 amps) including fedex overnight to get the first one back so
>> > we worked out a deal where he sent me a $200 rebate and I agreed to
>> > fix the amp myself...
>> >
>> > P.P.S.
>> >
>> > I hope this is enough information. I don't want to get accused of
>> > trolling again... :-)
>> >
>> >
>>
>
>
>

[Jack A. Zucker]

I'm also trying to look at the bright side of things. Yes - I got a crappy
boutique amp but on the other hand, I'm learning a lot and because it's not
an old fender or marshall, I don't feel bad about tinkering and making
changes.

After I get this all straightened out, I'm going to build an amp from
scratch...

I do wish the guy had more of a comittment to quality. He did try to help me
as much as he could. It was just that he has a very odd sense of quality.

Jaz

"Greg D" <oasysco@cox.net> wrote in message
news:Xns93DDC089921CEoasyscocoxnet@68.1.17.6...
> Jack,
>
> I wish I could offer a solution, but all I can do is stand there and
> cluck my tongue - totally in sympathy with you.
>
> THe thing is hand-wired and if he has a schematic, you might try RonSonic
> (Ron Bales), Phil the AMp MEdic, or even LV over at AGA where I know you
> hang out as well. Has anybody in AGA been any help, Jack?
>
> THankfully, you know enough about circuits to have a fighting chance. Me?
> I don't know what I"d do other than ***** 'n moan a whole lot louder than
> you.
>
> Keep us posted.
>
> GReg
>
> > Well,
> >
> > What can I do?!? Even though I agree it's a total ripoff, it's not out
> > of the ordinary for an amp maker to charge you shipping when you
> > return an item. I pointed out to this guy that it wasn't just that I
> > didn't like it or that I changed my mind. This thing had VERY serious
> > design problems. He was non-plussed. My choice was keep it and the
> > $200 or send it back minus all the shipping which came to a
> > considerable amount because the first one was returned fed-ex
> > next-day-air (at his request and promise to pay)...
> >
> > Anyway, we're way off topic. I'm trying to get opinions on how to fix
> > the technical issues. The only reason I went into such detail is that
> > the last time I tried to only disclose part of the information, I was
> > accused of being a troll. (See my post about 6V6 tubes and the 5Y3 in
> > a 6L6 amp for details) :-)
> >
> > "Greg D" <oasysco@cox.net> wrote in message
> > news:Xns93DDBC44DC916oasyscocoxnet@68.1.17.6...
> >> Jack,
> >>
> >> That is just too much crap to go thru for a new amp. I complaiend
> >> aobut my new amps when I had to swpa out a speaker or th preamp
> >> tubes, but what you are going through - whew...
> >>
> >> Greg
> >>
> >> > I bought this thing from a small amp builder. I thought it was a
> >> > good deal. Let me just say that folks were right and that you get
> >> > what you pay for.
> >> >
> >> > Anyway, it's basically a 50 watt Fender Reverb, single channel
> >> > style amp. 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7
> >> > tubes, big BF Bassman size output transformer, no choke, yada-yada.
> >> > Slight variations upon the AB763 circuit, minus the vibrato.
> >> >
> >> > This thing has been a nightmare from the beginning. Speaker that
> >> > didn't fit, power tranny center-tap not connected, ground side of
> >> > screen supply filter cap not connected, cold solder joints, non
> >> > shielded wires going to the dwell control (causing squealing),
> >> > power tranny getting EXTREMELY hot, power supply and screen grid
> >> > caps rated at 450V though they are seeing 475V, yada-yada.
> >> >
> >> > I've got everything fixed (including changing all audio components
> >> > to AB763 values). The outstanding issues are the power transformer
> >> > overheating and the underrated filter supply caps. I have a quad of
> >> > 350V 100uf caps on order to run in a totem-pole arrangement
> >> > (original value was 47uf) but I'm not sure how I'll fit them in
> >> > because they are currently on the board and there's not room for 4,
> >> > side by side or 2 stacked (it's a 2" high chassis and the board is
> >> > .75" up from the bottom. One idea is to cut holes in the board and
> >> > stack the caps using cable ties and RTV to hold them together.
> >> > There's no room under the chassi unless I want to mount the 4 caps
> >> > on the opposite underside of the chassis from the power tranny.
> >> >
> >> > Another option would be to play it close to the hilt and try to
> >> > find 47uf 500V caps or somehow try to fit an LCR 50uf/50uf 500V can
> >> > inside the chassis. Not sure I want to drill a huge hole in the
> >> > chassis and even if I do, I'd have to put it on the opposite side
> >> > due to space considerations...
> >> >
> >> > The other possibly larger problem is the power transformer. It's
> >> > made by handwound transformers.com. I've heard many nightmares
> >> > about them. It's a 375-0-375 tranny and it's rated for 6A on the
> >> > heater tap and 3A on the rectifier tap. Even at practice volumes
> >> > and a fan blowing on the tubes and the transformer, it get so hot
> >> > that the chassis is almost too hot to touch. The fan keeps the
> >> > tubes very cool so I know know it's the transformer itself.
> >> >
> >> > I tried putting in a weber copper cap to see if not drawing down
> >> > the
> >> > rectifier heater would make a difference. Since this transformer is
> >> > a tad too hot for my use, I think I may look into getting a decent
> >> > quality 350-0-350 transformer. Something like the Hammond 273X
> >> > (120VA, sec. 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a,
> >> > Fil.#2(htr) 6.3v @ 4.0a ct)
> >> >
> >> > If I wanted to ditch the rectifier tube and go with a full wave
> >> > bridge rectifier (w/no centertap), In that case since I wouldn't be
> >> > using the rectifier tube I'd probably go with a 330-330 of 340-340
> >> > transformer. anyone have any recommendations? Yes, I know I should
> >> > use google. I will
> >>
> >>
> >> >
> >> > P.S.
> >> >
> >> > I don't want to go off on a tangent but this one is the 2nd amp I
> >> > got from him. The first one had even more problems. I could have
> >> > returned this amp but I would have been charged shipping 4 ways
> >> > (for 2 amps) including fedex overnight to get the first one back so
> >> > we worked out a deal where he sent me a $200 rebate and I agreed to
> >> > fix the amp myself...
> >> >
> >> > P.P.S.
> >> >
> >> > I hope this is enough information. I don't want to get accused of
> >> > trolling again... :-)
> >> >
> >> >
> >>
> >
> >
> >
>

[don judy]

"Jack A. Zucker" <jaz@jackzucker.com> wrote in message
news:emT0b.13211$2Y6.4156135@news2.news.adelphia.n et...
> I'm also trying to look at the bright side of things. Yes - I got a crappy
> boutique amp but on the other hand, I'm learning a lot and because it's
not
> an old fender or marshall, I don't feel bad about tinkering and making
> changes.
>
> After I get this all straightened out, I'm going to build an amp from
> scratch...
>
> I do wish the guy had more of a comittment to quality. He did try to help
me
> as much as he could. It was just that he has a very odd sense of quality.
>
> Jaz
>
> "Greg D" <oasysco@cox.net> wrote in message
> news:Xns93DDC089921CEoasyscocoxnet@68.1.17.6...
> > Jack,
> >
> > I wish I could offer a solution, but all I can do is stand there and
> > cluck my tongue - totally in sympathy with you.
> >
> > THe thing is hand-wired and if he has a schematic, you might try
RonSonic
> > (Ron Bales), Phil the AMp MEdic, or even LV over at AGA where I know you
> > hang out as well. Has anybody in AGA been any help, Jack?
> >
> > THankfully, you know enough about circuits to have a fighting chance.
Me?
> > I don't know what I"d do other than ***** 'n moan a whole lot louder
than
> > you.
> >
> > Keep us posted.
> >
> > GReg
> >
> > > Well,
> > >
> > > What can I do?!? Even though I agree it's a total ripoff, it's not out
> > > of the ordinary for an amp maker to charge you shipping when you
> > > return an item. I pointed out to this guy that it wasn't just that I
> > > didn't like it or that I changed my mind. This thing had VERY serious
> > > design problems. He was non-plussed. My choice was keep it and the
> > > $200 or send it back minus all the shipping which came to a
> > > considerable amount because the first one was returned fed-ex
> > > next-day-air (at his request and promise to pay)...

He sold you a freakin' hotplate instead of an amp and he wants
you to pay shipping to exchange it for a real amp? He should
pay you interest on the amount of time he has your money.


dj



>
>

[RonSonic]

On Wed, 20 Aug 2003 22:42:54 GMT, "Jack A. Zucker" <jaz@jackzucker.com> wrote:

>Well,
>
>What can I do?!? Even though I agree it's a total ripoff, it's not out of
>the ordinary for an amp maker to charge you shipping when you return an
>item. I pointed out to this guy that it wasn't just that I didn't like it or
>that I changed my mind. This thing had VERY serious design problems. He was
>non-plussed. My choice was keep it and the $200 or send it back minus all
>the shipping which came to a considerable amount because the first one was
>returned fed-ex next-day-air (at his request and promise to pay)...
>
>Anyway, we're way off topic. I'm trying to get opinions on how to fix the
>technical issues. The only reason I went into such detail is that the last
>time I tried to only disclose part of the information, I was accused of
>being a troll. (See my post about 6V6 tubes and the 5Y3 in a 6L6 amp for
>details) :-)

Oh ****.

Didn't connect the threads. Oh ****. No wonder the guy said 6V6 would work fine,
he apparently will say anything.

Get a more suitable tranny first. Then a lot of the voltage issues will answer
themselves. It's a 50W Fender clone, shove a 50W Fender tranny in there. Then
you'll have 50W Fender voltages and those caps will work.

Had a BF Pro Reverb in the shop today - never met this model before. I am very
impressed. This is what your amp should aspire to.

Ron




>"Greg D" <oasysco@cox.net> wrote in message
>news:Xns93DDBC44DC916oasyscocoxnet@68.1.17.6...
>> Jack,
>>
>> That is just too much crap to go thru for a new amp. I complaiend aobut
>> my new amps when I had to swpa out a speaker or th preamp tubes, but what
>> you are going through - whew...
>>
>> Greg
>>
>> > I bought this thing from a small amp builder. I thought it was a good
>> > deal. Let me just say that folks were right and that you get what you
>> > pay for.
>> >
>> > Anyway, it's basically a 50 watt Fender Reverb, single channel style
>> > amp. 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes,
>> > big BF Bassman size output transformer, no choke, yada-yada. Slight
>> > variations upon the AB763 circuit, minus the vibrato.
>> >
>> > This thing has been a nightmare from the beginning. Speaker that
>> > didn't fit, power tranny center-tap not connected, ground side of
>> > screen supply filter cap not connected, cold solder joints, non
>> > shielded wires going to the dwell control (causing squealing), power
>> > tranny getting EXTREMELY hot, power supply and screen grid caps rated
>> > at 450V though they are seeing 475V, yada-yada.
>> >
>> > I've got everything fixed (including changing all audio components to
>> > AB763 values). The outstanding issues are the power transformer
>> > overheating and the underrated filter supply caps. I have a quad of
>> > 350V 100uf caps on order to run in a totem-pole arrangement (original
>> > value was 47uf) but I'm not sure how I'll fit them in because they are
>> > currently on the board and there's not room for 4, side by side or 2
>> > stacked (it's a 2" high chassis and the board is .75" up from the
>> > bottom. One idea is to cut holes in the board and stack the caps using
>> > cable ties and RTV to hold them together. There's no room under the
>> > chassi unless I want to mount the 4 caps on the opposite underside of
>> > the chassis from the power tranny.
>> >
>> > Another option would be to play it close to the hilt and try to find
>> > 47uf 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside
>> > the chassis. Not sure I want to drill a huge hole in the chassis and
>> > even if I do, I'd have to put it on the opposite side due to space
>> > considerations...
>> >
>> > The other possibly larger problem is the power transformer. It's made
>> > by handwound transformers.com. I've heard many nightmares about them.
>> > It's a 375-0-375 tranny and it's rated for 6A on the heater tap and 3A
>> > on the rectifier tap. Even at practice volumes and a fan blowing on
>> > the tubes and the transformer, it get so hot that the chassis is
>> > almost too hot to touch. The fan keeps the tubes very cool so I know
>> > know it's the transformer itself.
>> >
>> > I tried putting in a weber copper cap to see if not drawing down the
>> > rectifier heater would make a difference. Since this transformer is a
>> > tad too hot for my use, I think I may look into getting a decent
>> > quality 350-0-350 transformer. Something like the Hammond 273X (120VA,
>> > sec. 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @
>> > 4.0a ct)
>> >
>> > If I wanted to ditch the rectifier tube and go with a full wave bridge
>> > rectifier (w/no centertap), In that case since I wouldn't be using the
>> > rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
>> > anyone have any recommendations? Yes, I know I should use google. I
>> > will
>>
>>
>> >
>> > P.S.
>> >
>> > I don't want to go off on a tangent but this one is the 2nd amp I got
>> > from him. The first one had even more problems. I could have returned
>> > this amp but I would have been charged shipping 4 ways (for 2 amps)
>> > including fedex overnight to get the first one back so we worked out a
>> > deal where he sent me a $200 rebate and I agreed to fix the amp
>> > myself...
>> >
>> > P.P.S.
>> >
>> > I hope this is enough information. I don't want to get accused of
>> > trolling again... :-)
>> >
>> >
>>
>

[Jack A. Zucker]

"RonSonic" <ronsonic@tampabay.rr.com> wrote in message
news:g1pakv8onng0glntm19dp7qonujt6ps4k5@4ax.com...
> Get a more suitable tranny first. Then a lot of the voltage issues will
answer
> themselves. It's a 50W Fender clone, shove a 50W Fender tranny in there.
Then
> you'll have 50W Fender voltages and those caps will work.
>
> Had a BF Pro Reverb in the shop today - never met this model before. I am
very
> impressed. This is what your amp should aspire to.

I'd like to do that but I'd have to cut the chassis to put a lay-down
transformer in there. Hammond makes an upright transformer rated at 115V,
325-0-325 but it's only rated for 150MA and I'm not sure that's enough for
this amp.

[stringbend]

"Jack A. Zucker" <jaz@jackzucker.com> wrote in message news:<wUe1b.14278$2Y6.4458606@news2.news.adelphia.net>...

> I'd like to do that but I'd have to cut the chassis to put a lay-down
> transformer in there. Hammond makes an upright transformer rated at 115V,
> 325-0-325 but it's only rated for 150MA and I'm not sure that's enough for
> this amp.

Hi Jack:

AES sells many flavors of Hammond trannys. I believe the one you are
looking at is undersized for your needs, just as you suggest. I
haven't kept track of this entire thread so I don't know your complete
requirements but the 272JX ought to do you right.

Note that Hammonds are spec'd at either 115 or 117 (I've seen both in
print). In either case, if your venue is 124-127 like my house you
will have higher secondary voltages than what you might otherwise
expect. Thus, if you were willing to live with a *little* less
voltage (and closer to the edge of what you need current-wise) the
270HX is also a viable alternative.
(weighs less too!).

The tranny they sell for 50W Marshalls (P-TM050) might also be a good
choice.

Good luck,
stringbend

[Jack A. Zucker]

Thanks for your help on this issue. However, the guy who built this amp for
me in the first place has agreed to refund my money so it looks like I won't
need to rebuild it afterall. It was a good learning project but there were
too many poorly engineered parts of this design.

Thanks for all your time and trouble. I'm going to save the information
anyway because I'm going to build an amp from scratch over the next 6
months.

Jaz

----- Original Message -----
From: "stringbend" <stringbend@aol.com>
Newsgroups:
alt.guitar.amps,rec.music.makers.guitar,rec.music. makers.guitar.jazz
Sent: Saturday, August 23, 2003 2:17 PM
Subject: Re: Problems with custom amp...


> "Jack A. Zucker" <jaz@jackzucker.com> wrote in message
news:<wUe1b.14278$2Y6.4458606@news2.news.adelphia.net>...
>
> > I'd like to do that but I'd have to cut the chassis to put a lay-down
> > transformer in there. Hammond makes an upright transformer rated at
115V,
> > 325-0-325 but it's only rated for 150MA and I'm not sure that's enough
for
> > this amp.
>
> Hi Jack:
>
> AES sells many flavors of Hammond trannys. I believe the one you are
> looking at is undersized for your needs, just as you suggest. I
> haven't kept track of this entire thread so I don't know your complete
> requirements but the 272JX ought to do you right.
>
> Note that Hammonds are spec'd at either 115 or 117 (I've seen both in
> print). In either case, if your venue is 124-127 like my house you
> will have higher secondary voltages than what you might otherwise
> expect. Thus, if you were willing to live with a *little* less
> voltage (and closer to the edge of what you need current-wise) the
> 270HX is also a viable alternative.
> (weighs less too!).
>
> The tranny they sell for 50W Marshalls (P-TM050) might also be a good
> choice.
>
> Good luck,
> stringbend

[Nobody]

Jack A. Zucker <jaz@jackzucker.com> wrote in article <NgO1b.15769$2Y6.4937823@news2.news.adelphia.net>...
> Thanks for your help on this issue. However, the guy who built this amp for
> me in the first place has agreed to refund my money so it looks like I won't
> need to rebuild it afterall.

Well awesome, man.

--
Jason
http://www.geocities.com/nobody_upstairs

[Margaret Wilson]

Yeah, what ultimately made him do the right thing?

Regards,

Margaret

"Nobody" <nobodyupstairs@aolDELETE.com> wrote in message
news:01c369ae$ac2d9400$b9c2580c@715162529worldnet. att.net...
>
>
> Jack A. Zucker <jaz@jackzucker.com> wrote in article
<NgO1b.15769$2Y6.4937823@news2.news.adelphia.net>...
> > Thanks for your help on this issue. However, the guy who built this amp
for
> > me in the first place has agreed to refund my money so it looks like I
won't
> > need to rebuild it afterall.
>
> Well awesome, man.
>
> --
> Jason
> http://www.geocities.com/nobody_upstairs
>

[Catalina Thunders]

Jack A. Zucker wrote:
> Thanks for your help on this issue. However, the guy who built this amp for
> me in the first place has agreed to refund my money so it looks like I won't
> need to rebuild it afterall. It was a good learning project but there were
> too many poorly engineered parts of this design.
>
> Thanks for all your time and trouble. I'm going to save the information
> anyway because I'm going to build an amp from scratch over the next 6
> months.
>
> Jaz
>

Yes! That is really good news, Jack.

Cheers,

:)

Cat

[Zorro_2K]

I'm beginning to think that you post just to have something to read...


"Jack A. Zucker" <jaz@jackzucker.com> wrote in message
news:%UK0b.13015$2Y6.4057255@news2.news.adelphia.n et...
> I bought this thing from a small amp builder. I thought it was a good
deal.
> Let me just say that folks were right and that you get what you pay for.
>
> Anyway, it's basically a 50 watt Fender Reverb, single channel style amp.
> 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
> Bassman size output transformer, no choke, yada-yada. Slight variations
upon
> the AB763 circuit, minus the vibrato.
>
> This thing has been a nightmare from the beginning. Speaker that didn't
fit,
> power tranny center-tap not connected, ground side of screen supply filter
> cap not connected, cold solder joints, non shielded wires going to the
dwell
> control (causing squealing), power tranny getting EXTREMELY hot, power
> supply and screen grid caps rated at 450V though they are seeing 475V,
> yada-yada.
>
> I've got everything fixed (including changing all audio components to
AB763
> values). The outstanding issues are the power transformer overheating and
> the underrated filter supply caps. I have a quad of 350V 100uf caps on
order
> to run in a totem-pole arrangement (original value was 47uf) but I'm not
> sure how I'll fit them in because they are currently on the board and
> there's not room for 4, side by side or 2 stacked (it's a 2" high chassis
> and the board is .75" up from the bottom. One idea is to cut holes in the
> board and stack the caps using cable ties and RTV to hold them together.
> There's no room under the chassi unless I want to mount the 4 caps on the
> opposite underside of the chassis from the power tranny.
>
> Another option would be to play it close to the hilt and try to find 47uf
> 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
> chassis. Not sure I want to drill a huge hole in the chassis and even if I
> do, I'd have to put it on the opposite side due to space considerations...
>
> The other possibly larger problem is the power transformer. It's made by
> handwound transformers.com. I've heard many nightmares about them. It's a
> 375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
> rectifier tap. Even at practice volumes and a fan blowing on the tubes and
> the transformer, it get so hot that the chassis is almost too hot to
touch.
> The fan keeps the tubes very cool so I know know it's the transformer
> itself.
>
> I tried putting in a weber copper cap to see if not drawing down the
> rectifier heater would make a difference. Since this transformer is a tad
> too hot for my use, I think I may look into getting a decent quality
> 350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
> 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a ct)
>
> If I wanted to ditch the rectifier tube and go with a full wave bridge
> rectifier (w/no centertap), In that case since I wouldn't be using the
> rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
anyone
> have any recommendations? Yes, I know I should use google. I will
>
> P.S.
>
> I don't want to go off on a tangent but this one is the 2nd amp I got from
> him. The first one had even more problems. I could have returned this amp
> but I would have been charged shipping 4 ways (for 2 amps) including fedex
> overnight to get the first one back so we worked out a deal where he sent
me
> a $200 rebate and I agreed to fix the amp myself...
>
> P.P.S.
>
> I hope this is enough information. I don't want to get accused of trolling
> again... :-)
>
>
>

[Zorro_2K]

"Margaret Wilson" <twokatmew@nospam.msn.com> wrote in message
news:bi03gd0oht@enews2.newsguy.com...
> Wow, this is a really terrible story. I'm sorry you've had so much
trouble,
> Jack.
>
> Regards,
>
> Margaret

I'm sure that Jack feels better now that you have told him you are
sympathetic to his situation, Margaret. I, too, am sorry that Jack has had
so many problems with his search for the perfect amplifier, and wish him
better luck int he future.

Do you fell better now, Jack ?


>
> "Jack A. Zucker" <jaz@jackzucker.com> wrote in message
> news:%UK0b.13015$2Y6.4057255@news2.news.adelphia.n et...
> > I bought this thing from a small amp builder. I thought it was a good
> deal.
> > Let me just say that folks were right and that you get what you pay for.
> >
> > Anyway, it's basically a 50 watt Fender Reverb, single channel style
amp.
> > 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
> > Bassman size output transformer, no choke, yada-yada. Slight variations
> upon
> > the AB763 circuit, minus the vibrato.
> >
> > This thing has been a nightmare from the beginning. Speaker that didn't
> fit,
> > power tranny center-tap not connected, ground side of screen supply
filter
> > cap not connected, cold solder joints, non shielded wires going to the
> dwell
> > control (causing squealing), power tranny getting EXTREMELY hot, power
> > supply and screen grid caps rated at 450V though they are seeing 475V,
> > yada-yada.
> >
> > I've got everything fixed (including changing all audio components to
> AB763
> > values). The outstanding issues are the power transformer overheating
and
> > the underrated filter supply caps. I have a quad of 350V 100uf caps on
> order
> > to run in a totem-pole arrangement (original value was 47uf) but I'm not
> > sure how I'll fit them in because they are currently on the board and
> > there's not room for 4, side by side or 2 stacked (it's a 2" high
chassis
> > and the board is .75" up from the bottom. One idea is to cut holes in
the
> > board and stack the caps using cable ties and RTV to hold them together.
> > There's no room under the chassi unless I want to mount the 4 caps on
the
> > opposite underside of the chassis from the power tranny.
> >
> > Another option would be to play it close to the hilt and try to find
47uf
> > 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
> > chassis. Not sure I want to drill a huge hole in the chassis and even if
I
> > do, I'd have to put it on the opposite side due to space
considerations...
> >
> > The other possibly larger problem is the power transformer. It's made by
> > handwound transformers.com. I've heard many nightmares about them. It's
a
> > 375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
> > rectifier tap. Even at practice volumes and a fan blowing on the tubes
and
> > the transformer, it get so hot that the chassis is almost too hot to
> touch.
> > The fan keeps the tubes very cool so I know know it's the transformer
> > itself.
> >
> > I tried putting in a weber copper cap to see if not drawing down the
> > rectifier heater would make a difference. Since this transformer is a
tad
> > too hot for my use, I think I may look into getting a decent quality
> > 350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
> > 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a ct)
> >
> > If I wanted to ditch the rectifier tube and go with a full wave bridge
> > rectifier (w/no centertap), In that case since I wouldn't be using the
> > rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
> anyone
> > have any recommendations? Yes, I know I should use google. I will
> >
> > P.S.
> >
> > I don't want to go off on a tangent but this one is the 2nd amp I got
from
> > him. The first one had even more problems. I could have returned this
amp
> > but I would have been charged shipping 4 ways (for 2 amps) including
fedex
> > overnight to get the first one back so we worked out a deal where he
sent
> me
> > a $200 rebate and I agreed to fix the amp myself...
> >
> > P.P.S.
> >
> > I hope this is enough information. I don't want to get accused of
trolling
> > again... :-)
> >
> >
>
>

[JC]

Zorro, you are an ass.

Jack is detailing some problems he had. He specifically asked a few
questions that someone who frequents these boards would possibly be able to
answer. I have learned from his post to be wary of small vendors and
possible bad customer service. His post had a point. He has also
contributed to this newsgroup and been helpful to other people in the past.

Your post however was just obnoxious, and served no purpose except to show
your intolerance, inconsideration and tendency towards sarcasm.

If his posts bother you so much, kill file him, and you never have to be
bothered again. Just like I am going to killfile you and not be bothered by
your immaturity and self-centeredness. I have yet to see you contribute
anything positive or helpful.

Bye now,

JC






"Zorro_2K" <pcollenDELETETHIS@cfl.rr.com> wrote in message
news:wL72b.80518$K4.3618841@twister.tampabay.rr.co m...
>
> "Margaret Wilson" <twokatmew@nospam.msn.com> wrote in message
> news:bi03gd0oht@enews2.newsguy.com...
> > Wow, this is a really terrible story. I'm sorry you've had so much
> trouble,
> > Jack.
> >
> > Regards,
> >
> > Margaret
>
> I'm sure that Jack feels better now that you have told him you are
> sympathetic to his situation, Margaret. I, too, am sorry that Jack has
had
> so many problems with his search for the perfect amplifier, and wish him
> better luck int he future.
>
> Do you fell better now, Jack ?
>
>
> >
> > "Jack A. Zucker" <jaz@jackzucker.com> wrote in message
> > news:%UK0b.13015$2Y6.4057255@news2.news.adelphia.n et...
> > > I bought this thing from a small amp builder. I thought it was a good
> > deal.
> > > Let me just say that folks were right and that you get what you pay
for.
> > >
> > > Anyway, it's basically a 50 watt Fender Reverb, single channel style
> amp.
> > > 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big BF
> > > Bassman size output transformer, no choke, yada-yada. Slight
variations
> > upon
> > > the AB763 circuit, minus the vibrato.
> > >
> > > This thing has been a nightmare from the beginning. Speaker that
didn't
> > fit,
> > > power tranny center-tap not connected, ground side of screen supply
> filter
> > > cap not connected, cold solder joints, non shielded wires going to the
> > dwell
> > > control (causing squealing), power tranny getting EXTREMELY hot, power
> > > supply and screen grid caps rated at 450V though they are seeing 475V,
> > > yada-yada.
> > >
> > > I've got everything fixed (including changing all audio components to
> > AB763
> > > values). The outstanding issues are the power transformer overheating
> and
> > > the underrated filter supply caps. I have a quad of 350V 100uf caps on
> > order
> > > to run in a totem-pole arrangement (original value was 47uf) but I'm
not
> > > sure how I'll fit them in because they are currently on the board and
> > > there's not room for 4, side by side or 2 stacked (it's a 2" high
> chassis
> > > and the board is .75" up from the bottom. One idea is to cut holes in
> the
> > > board and stack the caps using cable ties and RTV to hold them
together.
> > > There's no room under the chassi unless I want to mount the 4 caps on
> the
> > > opposite underside of the chassis from the power tranny.
> > >
> > > Another option would be to play it close to the hilt and try to find
> 47uf
> > > 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
> > > chassis. Not sure I want to drill a huge hole in the chassis and even
if
> I
> > > do, I'd have to put it on the opposite side due to space
> considerations...
> > >
> > > The other possibly larger problem is the power transformer. It's made
by
> > > handwound transformers.com. I've heard many nightmares about them.
It's
> a
> > > 375-0-375 tranny and it's rated for 6A on the heater tap and 3A on the
> > > rectifier tap. Even at practice volumes and a fan blowing on the tubes
> and
> > > the transformer, it get so hot that the chassis is almost too hot to
> > touch.
> > > The fan keeps the tubes very cool so I know know it's the transformer
> > > itself.
> > >
> > > I tried putting in a weber copper cap to see if not drawing down the
> > > rectifier heater would make a difference. Since this transformer is a
> tad
> > > too hot for my use, I think I may look into getting a decent quality
> > > 350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
> > > 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a
ct)
> > >
> > > If I wanted to ditch the rectifier tube and go with a full wave bridge
> > > rectifier (w/no centertap), In that case since I wouldn't be using the
> > > rectifier tube I'd probably go with a 330-330 of 340-340 transformer.
> > anyone
> > > have any recommendations? Yes, I know I should use google. I will
> > >
> > > P.S.
> > >
> > > I don't want to go off on a tangent but this one is the 2nd amp I got
> from
> > > him. The first one had even more problems. I could have returned this
> amp
> > > but I would have been charged shipping 4 ways (for 2 amps) including
> fedex
> > > overnight to get the first one back so we worked out a deal where he
> sent
> > me
> > > a $200 rebate and I agreed to fix the amp myself...
> > >
> > > P.P.S.
> > >
> > > I hope this is enough information. I don't want to get accused of
> trolling
> > > again... :-)
> > >
> > >
> >
> >
>
>

[Jack A. Zucker]

Thanks JC.

Say hi to rmmgrs for me Pat...

Jaz

"JC" <fullyaltered@hotmail.com> wrote in message
news:9ld2b.30491$dO2.15579@fe2.columbus.rr.com...
> Zorro, you are an ass.
>
> Jack is detailing some problems he had. He specifically asked a few
> questions that someone who frequents these boards would possibly be able
to
> answer. I have learned from his post to be wary of small vendors and
> possible bad customer service. His post had a point. He has also
> contributed to this newsgroup and been helpful to other people in the
past.
>
> Your post however was just obnoxious, and served no purpose except to show
> your intolerance, inconsideration and tendency towards sarcasm.
>
> If his posts bother you so much, kill file him, and you never have to be
> bothered again. Just like I am going to killfile you and not be bothered
by
> your immaturity and self-centeredness. I have yet to see you contribute
> anything positive or helpful.
>
> Bye now,
>
> JC
>
>
>
>
>
>
> "Zorro_2K" <pcollenDELETETHIS@cfl.rr.com> wrote in message
> news:wL72b.80518$K4.3618841@twister.tampabay.rr.co m...
> >
> > "Margaret Wilson" <twokatmew@nospam.msn.com> wrote in message
> > news:bi03gd0oht@enews2.newsguy.com...
> > > Wow, this is a really terrible story. I'm sorry you've had so much
> > trouble,
> > > Jack.
> > >
> > > Regards,
> > >
> > > Margaret
> >
> > I'm sure that Jack feels better now that you have told him you are
> > sympathetic to his situation, Margaret. I, too, am sorry that Jack has
> had
> > so many problems with his search for the perfect amplifier, and wish him
> > better luck int he future.
> >
> > Do you fell better now, Jack ?
> >
> >
> > >
> > > "Jack A. Zucker" <jaz@jackzucker.com> wrote in message
> > > news:%UK0b.13015$2Y6.4057255@news2.news.adelphia.n et...
> > > > I bought this thing from a small amp builder. I thought it was a
good
> > > deal.
> > > > Let me just say that folks were right and that you get what you pay
> for.
> > > >
> > > > Anyway, it's basically a 50 watt Fender Reverb, single channel style
> > amp.
> > > > 375-0-375 PT, GZ34 rectifier, 2 6L6, (2) AX7 and (2) AT7 tubes, big
BF
> > > > Bassman size output transformer, no choke, yada-yada. Slight
> variations
> > > upon
> > > > the AB763 circuit, minus the vibrato.
> > > >
> > > > This thing has been a nightmare from the beginning. Speaker that
> didn't
> > > fit,
> > > > power tranny center-tap not connected, ground side of screen supply
> > filter
> > > > cap not connected, cold solder joints, non shielded wires going to
the
> > > dwell
> > > > control (causing squealing), power tranny getting EXTREMELY hot,
power
> > > > supply and screen grid caps rated at 450V though they are seeing
475V,
> > > > yada-yada.
> > > >
> > > > I've got everything fixed (including changing all audio components
to
> > > AB763
> > > > values). The outstanding issues are the power transformer
overheating
> > and
> > > > the underrated filter supply caps. I have a quad of 350V 100uf caps
on
> > > order
> > > > to run in a totem-pole arrangement (original value was 47uf) but I'm
> not
> > > > sure how I'll fit them in because they are currently on the board
and
> > > > there's not room for 4, side by side or 2 stacked (it's a 2" high
> > chassis
> > > > and the board is .75" up from the bottom. One idea is to cut holes
in
> > the
> > > > board and stack the caps using cable ties and RTV to hold them
> together.
> > > > There's no room under the chassi unless I want to mount the 4 caps
on
> > the
> > > > opposite underside of the chassis from the power tranny.
> > > >
> > > > Another option would be to play it close to the hilt and try to find
> > 47uf
> > > > 500V caps or somehow try to fit an LCR 50uf/50uf 500V can inside the
> > > > chassis. Not sure I want to drill a huge hole in the chassis and
even
> if
> > I
> > > > do, I'd have to put it on the opposite side due to space
> > considerations...
> > > >
> > > > The other possibly larger problem is the power transformer. It's
made
> by
> > > > handwound transformers.com. I've heard many nightmares about them.
> It's
> > a
> > > > 375-0-375 tranny and it's rated for 6A on the heater tap and 3A on
the
> > > > rectifier tap. Even at practice volumes and a fan blowing on the
tubes
> > and
> > > > the transformer, it get so hot that the chassis is almost too hot to
> > > touch.
> > > > The fan keeps the tubes very cool so I know know it's the
transformer
> > > > itself.
> > > >
> > > > I tried putting in a weber copper cap to see if not drawing down
the
> > > > rectifier heater would make a difference. Since this transformer is
a
> > tad
> > > > too hot for my use, I think I may look into getting a decent quality
> > > > 350-0-350 transformer. Something like the Hammond 273X (120VA, sec.
> > > > 350-0-350, DC ma 110, Fil.#1(rct) 5.0v @ 2a, Fil.#2(htr) 6.3v @ 4.0a
> ct)
> > > >
> > > > If I wanted to ditch the rectifier tube and go with a full wave
bridge
> > > > rectifier (w/no centertap), In that case since I wouldn't be using
the
> > > > rectifier tube I'd probably go with a 330-330 of 340-340
transformer.
> > > anyone
> > > > have any recommendations? Yes, I know I should use google. I will
> > > >
> > > > P.S.
> > > >
> > > > I don't want to go off on a tangent but this one is the 2nd amp I
got
> > from
> > > > him. The first one had even more problems. I could have returned
this
> > amp
> > > > but I would have been charged shipping 4 ways (for 2 amps) including
> > fedex
> > > > overnight to get the first one back so we worked out a deal where he
> > sent
> > > me
> > > > a $200 rebate and I agreed to fix the amp myself...
> > > >
> > > > P.P.S.
> > > >
> > > > I hope this is enough information. I don't want to get accused of
> > trolling
> > > > again... :-)
> > > >
> > > >
> > >
> > >
> >
> >
>
>

[Miles O'Neal]

On Mon, 25 Aug 2003 01:09:25 +0000, JC wrote:

> Zorro, you are an ass.

One could make the same argument about you.
[I won't, I'm just saying it would be about
as valid. I'm assuming you would contend
you aren't?]

Jack has a reputation in AGA. If you do
a google search, you'll see a pattern emerge.

I covered this in another post, but it's basically
run try the latest thing, [maybe have a brief honeymoon,
and maybe not], start dissing whoever made the amp.
He's found the perfect tone more times than Zsa
Zsa found Mr. Right...


It's usually a good idea to look a little more
before you leap.

8^)

[PCollen]

"JC" <fullyaltered@hotmail.com> wrote in message news:<9ld2b.30491$dO2.15579@fe2.columbus.rr.com>...

>
> Jack is detailing some problems he had.

So, what's NEW...LOL...

[JC]

I don't need to do a google search. I am well aware of Jack and his
"patterns." He likes to buy guitars, amps, and various accessories, enjoy
them for a while, and then decide he would like to try something else. He
generally lets everyone know what he liked about the item when he got it,
and what he didn't like enough to get rid of it. So what. I do the same
thing, although perhaps on a smaller scale. If he has the time and the
money and the desire, more power to 'em. The way I see it, his opinion
possibly saves me a little leg work. It seems that people have been
attacking him unfairly, and it is rubbing me the wrong way.
I really wouldn't say that I am an ass so much as I am defensive. I am
not into flame wars so this is as far as I care to go in this direction in
this discussion. Which may already be a bit too far but let me just say...
I have read almost every post to this newsgroup for the past several
years, although I post very rarely (and previously under a different name)
and am pretty much obscure. Of course, you wouldn't have any way of knowing
that unless you had looked very carefully before YOU leaped.

JC


"Miles O'Neal" <meo@rru.com> wrote in message
news:pan.2003.08.25.05.23.20.464748@rru.com...
> On Mon, 25 Aug 2003 01:09:25 +0000, JC wrote:
>
> > Zorro, you are an ass.
>
> One could make the same argument about you.
> [I won't, I'm just saying it would be about
> as valid. I'm assuming you would contend
> you aren't?]
>
> Jack has a reputation in AGA. If you do
> a google search, you'll see a pattern emerge.
>
> I covered this in another post, but it's basically
> run try the latest thing, [maybe have a brief honeymoon,
> and maybe not], start dissing whoever made the amp.
> He's found the perfect tone more times than Zsa
> Zsa found Mr. Right...
>
>
> It's usually a good idea to look a little more
> before you leap.
>
> 8^)

[Jack A. Zucker]

"Miles O'Neal" <meo@rru.com> wrote in message
> Jack has a reputation in AGA. If you do
> a google search, you'll see a pattern emerge.

The same can be said about you, Miles. You have deliberately
obfuscated many postings in which I have asked for technical advise.
As far as I'm concerned, you are knowledgeable but are a slimebag.
Many folks have emailed me, thanking me for having the courage to
continue to raise technical issues in the face of your obvious
obsession with me.

I have emailed you several times asking to take this offline but you
refuse. Instead, you seem to enjoy the attention of disrupting
postings that I'm involved in though you have REPEATEDLY promised to
put me in your killfile and ignore me.

Miles - You represent the worst in herd mentality.

P.S.

Where are you audio clips (ducking...) :-)

[Jack A. Zucker]

"Zorro_2K" <pcollenDELETETHIS@cfl.rr.com> wrote in message news:<BI72b.80517$K4.3618568@twister.tampabay.rr.com>...
> I'm beginning to think that you post just to have something to read...

I'm beginning to think you respond because you don't know how to read.
Go back to rmmgers dude. At least your herd welcomes you there.

[Greg D]

JC,

I second that.
Greg

> I don't need to do a google search. I am well aware of Jack and
> his
> "patterns." He likes to buy guitars, amps, and various accessories,
> enjoy them for a while, and then decide he would like to try something
> else. He generally lets everyone know what he liked about the item
> when he got it, and what he didn't like enough to get rid of it. So
> what. I do the same thing, although perhaps on a smaller scale. If
> he has the time and the money and the desire, more power to 'em. The
> way I see it, his opinion possibly saves me a little leg work. It
> seems that people have been attacking him unfairly, and it is rubbing
> me the wrong way.
> I really wouldn't say that I am an ass so much as I am defensive.
> I am
> not into flame wars so this is as far as I care to go in this
> direction in this discussion. Which may already be a bit too far but
> let me just say...
> I have read almost every post to this newsgroup for the past
> several
> years, although I post very rarely (and previously under a different
> name) and am pretty much obscure. Of course, you wouldn't have any
> way of knowing that unless you had looked very carefully before YOU
> leaped.
>
> JC
>
>
> "Miles O'Neal" <meo@rru.com> wrote in message
> news:pan.2003.08.25.05.23.20.464748@rru.com...
>> On Mon, 25 Aug 2003 01:09:25 +0000, JC wrote:
>>
>> > Zorro, you are an ass.
>>
>> One could make the same argument about you.
>> [I won't, I'm just saying it would be about
>> as valid. I'm assuming you would contend
>> you aren't?]
>>
>> Jack has a reputation in AGA. If you do
>> a google search, you'll see a pattern emerge.
>>
>> I covered this in another post, but it's basically
>> run try the latest thing, [maybe have a brief honeymoon,
>> and maybe not], start dissing whoever made the amp.
>> He's found the perfect tone more times than Zsa
>> Zsa found Mr. Right...
>>
>>
>> It's usually a good idea to look a little more
>> before you leap.
>>
>> 8^)
>
>

[Atlas]

x-no-archive: yes

On Mon, 25 Aug 2003 12:41:06 GMT, "JC" <fullyaltered@hotmail.com>
wrote:

> I don't need to do a google search. I am well aware of Jack and his
>"patterns." He likes to buy guitars, amps, and various accessories, enjoy
>them for a while, and then decide he would like to try something else. He
>generally lets everyone know what he liked about the item when he got it,
>and what he didn't like enough to get rid of it. So what. I do the same
>thing, although perhaps on a smaller scale. If he has the time and the
>money and the desire, more power to 'em. The way I see it, his opinion
>possibly saves me a little leg work. It seems that people have been
>attacking him unfairly, and it is rubbing me the wrong way.

Pardon me for jumping in here. There's nothing wrong with
buying gear, enjoying it...and selling it when it no longer meets your
needs. Nothing wrong with that at all.

HOWEVER... With Zucker, it's not so much what he does, it's
how he acts online that rubs me (and a whole bunch other people) the
wrong way. One person described him as having a "terse sense of
humor" I don't perceive that. I perceive him to be arrogant,
caustic, smug, and without people skills. This isn't to take away
from his musical accomplishments. He is a very fine player.

If you trust Zucker's ears & judgement about gear - to the
point to where he's going to "save you some leg work", I'd say "caveat
emptor". Because he changes his mind about gear faster than most
people change their underwear. One day it's the greatest thing since
sliced bread - and the next day it's got numeous problems and
"obvious" build design flaws...yada, yada, yada.

Personally, I would NEVER buy a piece of gear because Zucker
(or anybody else) said it was great. If I'm paying for the gear, I'll
only trust my own ears. I've heard people rave about stuff online,
followed up with a test drive of my own - and found that I had