FS: HEWLETT-PACKARD 334A Distortion Analyzer

[Mike Nowlen]

Picture at
http://mywebpages.comcast.net/mnowlen/hp334a.htm

DESCRIPTION: This is the classic solid state workhorse distortion
analyzer. Covers 5 Hz to 600 kHz. Measures THD down to 0.03%. It also
doubles as a highly accurate AC Voltmeter with voltage and dB scales.
Has an auto-nulling circuit that allows quick distortion measurements
and AM detector.

SPECIFICATIONS: Freq Range: 5 Hz to 600 Khz Distortion Range: 0.1 % to
100% Full Scale Residual Distortion: less than -70 dB (0.03%)
Accuracy: +/-3% over 10 Hz to 1 MHz with fundamental input less than
30V to 0.3% THD Fundamental Rejection: Greater tham 80 dB Input
Impedance: 1Mohm +/-5% shunted by <70pF Voltmeter Range: 30uV to 300V
rms full scale (13 ranges) 10 dB per range. Automatic Null Accuracy:
Within 0 to +1.5dB of Manual null 100Hz to 600 KHz Dimensions: 16 3/4"
x 5" x 13 1/4" Weight: 17 3/4 lbs Shipping Wt: 25 lbs

CONDITION: Excellent, checked and working. This is one of the latest
model versions. Comes with power cord and copy of manual which
includes operating instructions.

$250 + Shipping (25 lbs).
No packing charges. Send Zip code for shipping charges.

Thanks for looking,

Mike Nowlen
mnowlen@comcast.net

[Shiva]

"Mike Nowlen" <mnowlen@comcast.net> wrote in message
news:8drsjv0ba806f0r489lffoohnac1atum2b@4ax.com...
> Picture at
> http://mywebpages.comcast.net/mnowlen/hp334a.htm
>
> DESCRIPTION: This is the classic solid state workhorse distortion
> analyzer. Covers 5 Hz to 600 kHz. Measures THD down to 0.03%. It also
> doubles as a highly accurate AC Voltmeter with voltage and dB scales.
> Has an auto-nulling circuit that allows quick distortion measurements
> and AM detector.
>
> SPECIFICATIONS: Freq Range: 5 Hz to 600 Khz Distortion Range: 0.1 % to
> 100% Full Scale Residual Distortion: less than -70 dB (0.03%)
> Accuracy: +/-3% over 10 Hz to 1 MHz with fundamental input less than
> 30V to 0.3% THD Fundamental Rejection: Greater tham 80 dB Input
> Impedance: 1Mohm +/-5% shunted by <70pF Voltmeter Range: 30uV to 300V
> rms full scale (13 ranges) 10 dB per range. Automatic Null Accuracy:
> Within 0 to +1.5dB of Manual null 100Hz to 600 KHz Dimensions: 16 3/4"
> x 5" x 13 1/4" Weight: 17 3/4 lbs Shipping Wt: 25 lbs
>
> CONDITION: Excellent, checked and working. This is one of the latest
> model versions. Comes with power cord and copy of manual which
> includes operating instructions.
>
> $250 + Shipping (25 lbs).
> No packing charges. Send Zip code for shipping charges.
>
> Thanks for looking,
>
> Mike Nowlen
> mnowlen@comcast.net
>
>

Or save yourselves a few bux and buy a 331A...
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2551846054&category=25398&rd=1

[LeBaron & Alrich]

Shiva <helpdesk@666.com> wrote:

> "Mike Nowlen" <mnowlen@comcast.net> wrote in message
> news:8drsjv0ba806f0r489lffoohnac1atum2b@4ax.com...

> > Picture at
> > http://mywebpages.comcast.net/mnowlen/hp334a.htm

> > DESCRIPTION: This is the classic solid state workhorse distortion
> > analyzer. Covers 5 Hz to 600 kHz. Measures THD down to 0.03%. It also
> > doubles as a highly accurate AC Voltmeter with voltage and dB scales.
> > Has an auto-nulling circuit that allows quick distortion measurements
> > and AM detector.

> > SPECIFICATIONS: Freq Range: 5 Hz to 600 Khz Distortion Range: 0.1 % to
> > 100% Full Scale Residual Distortion: less than -70 dB (0.03%)
> > Accuracy: +/-3% over 10 Hz to 1 MHz with fundamental input less than
> > 30V to 0.3% THD Fundamental Rejection: Greater tham 80 dB Input
> > Impedance: 1Mohm +/-5% shunted by <70pF Voltmeter Range: 30uV to 300V
> > rms full scale (13 ranges) 10 dB per range. Automatic Null Accuracy:
> > Within 0 to +1.5dB of Manual null 100Hz to 600 KHz Dimensions: 16 3/4"
> > x 5" x 13 1/4" Weight: 17 3/4 lbs Shipping Wt: 25 lbs

> > CONDITION: Excellent, checked and working. This is one of the latest
> > model versions. Comes with power cord and copy of manual which
> > includes operating instructions.

> > $250 + Shipping (25 lbs).
> > No packing charges. Send Zip code for shipping charges.

> > Thanks for looking,

> > Mike Nowlen
> > mnowlen@comcast.net

> Or save yourselves a few bux and buy a 331A...
> http://cgi.ebay.com/ws <snip>

Or spend time bidding, spend too much to get it, not know what
conditions it's in, or don't get it and waste all the time, or buy this
one from Mike.

--
ha

[Geoff Tanner]

"Shiva" <helpdesk@666.com> wrote in message news:<Xuu%a.4778$Cd2.4401@nwrdny01.gnilink.net>...
> "Mike Nowlen" <mnowlen@comcast.net> wrote in message
> news:8drsjv0ba806f0r489lffoohnac1atum2b@4ax.com...
> > Picture at
> > http://mywebpages.comcast.net/mnowlen/hp334a.htm
> >
> > DESCRIPTION: This is the classic solid state workhorse distortion
> > analyzer. Covers 5 Hz to 600 kHz. Measures THD down to 0.03%. It also
> > doubles as a highly accurate AC Voltmeter with voltage and dB scales.
> > Has an auto-nulling circuit that allows quick distortion measurements
> > and AM detector.
> >
> > SPECIFICATIONS: Freq Range: 5 Hz to 600 Khz Distortion Range: 0.1 % to
> > 100% Full Scale Residual Distortion: less than -70 dB (0.03%)
> > Accuracy: +/-3% over 10 Hz to 1 MHz with fundamental input less than
> > 30V to 0.3% THD Fundamental Rejection: Greater tham 80 dB Input
> > Impedance: 1Mohm +/-5% shunted by <70pF Voltmeter Range: 30uV to 300V
> > rms full scale (13 ranges) 10 dB per range. Automatic Null Accuracy:
> > Within 0 to +1.5dB of Manual null 100Hz to 600 KHz Dimensions: 16 3/4"
> > x 5" x 13 1/4" Weight: 17 3/4 lbs Shipping Wt: 25 lbs
> >
> > CONDITION: Excellent, checked and working. This is one of the latest
> > model versions. Comes with power cord and copy of manual which
> > includes operating instructions.
> >
> > $250 + Shipping (25 lbs).
> > No packing charges. Send Zip code for shipping charges.
> >
> > Thanks for looking,
> >
> > Mike Nowlen
> > mnowlen@comcast.net
> >
> >
>
> Or save yourselves a few bux and buy a 331A...
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2551846054&category=25398&rd=1

Hi

There's no comparison....

The 334A has an auto nulling feature on the distorton measurement that
can save ages of knob-twiddling manual nulling and it also measures
the distortion in an RF modulated audio signal.

The 334A is a nice, well built, piece of equipment. The only niggle I
have with it is why it reads +10dB for a 0dBu signal? I can live it it
though!

Geoff Tanner
Phoenix Audio International LLC
Aurora Audio International
www.auroraaudio.net

[Shiva]

"Geoff Tanner" <Phoenixaudio@earthlink.net> wrote in message
news:1ce0833a.0308161316.1b863b7f@posting.google.c om...
> "Shiva" <helpdesk@666.com> wrote in message
news:<Xuu%a.4778$Cd2.4401@nwrdny01.gnilink.net>...
> > "Mike Nowlen" <mnowlen@comcast.net> wrote in message
> > news:8drsjv0ba806f0r489lffoohnac1atum2b@4ax.com...
> > > Picture at
> > > http://mywebpages.comcast.net/mnowlen/hp334a.htm
> > >
> > > DESCRIPTION: This is the classic solid state workhorse distortion
> > > analyzer. Covers 5 Hz to 600 kHz. Measures THD down to 0.03%. It also
> > > doubles as a highly accurate AC Voltmeter with voltage and dB scales.
> > > Has an auto-nulling circuit that allows quick distortion measurements
> > > and AM detector.
> > >
> > > SPECIFICATIONS: Freq Range: 5 Hz to 600 Khz Distortion Range: 0.1 % to
> > > 100% Full Scale Residual Distortion: less than -70 dB (0.03%)
> > > Accuracy: +/-3% over 10 Hz to 1 MHz with fundamental input less than
> > > 30V to 0.3% THD Fundamental Rejection: Greater tham 80 dB Input
> > > Impedance: 1Mohm +/-5% shunted by <70pF Voltmeter Range: 30uV to 300V
> > > rms full scale (13 ranges) 10 dB per range. Automatic Null Accuracy:
> > > Within 0 to +1.5dB of Manual null 100Hz to 600 KHz Dimensions: 16 3/4"
> > > x 5" x 13 1/4" Weight: 17 3/4 lbs Shipping Wt: 25 lbs
> > >
> > > CONDITION: Excellent, checked and working. This is one of the latest
> > > model versions. Comes with power cord and copy of manual which
> > > includes operating instructions.
> > >
> > > $250 + Shipping (25 lbs).
> > > No packing charges. Send Zip code for shipping charges.
> > >
> > > Thanks for looking,
> > >
> > > Mike Nowlen
> > > mnowlen@comcast.net
> > >
> > >
> >
> > Or save yourselves a few bux and buy a 331A...
> >
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2551846054&category=25398&rd=1
>
> Hi
>
> There's no comparison....
>
> The 334A has an auto nulling feature on the distorton measurement that
> can save ages of knob-twiddling manual nulling and it also measures
> the distortion in an RF modulated audio signal.

Yeah, auto-nulling is handy. The RF bit, i think, was an option (called
332), but i never had a need for one (yet). 331 is a pain to use, but,
considering how often i need to use it, it's not that big a deal... I also
noticed that i use the scope-out more than the meter - it's a hell of a lot
more useful to know what *kind8 of distortion you're getting... And I've
been using it less & less once i got a velleman scope (a 15Mhz digital scope
which uses your PC for display, storage, data manipulation & the front end -
has a nifty spectrum analyzer appy. Unlike the 'soundcard scopes, this
one's actually the real deal, check them out - they're annoyingly cheap &
can work with a laptop...) Still use the old tek as a 'workhorse" scope,
but a spectrum analyzer seems to be more informative than a dist. analyzer
when prototypin' stuff...

>
> The 334A is a nice, well built, piece of equipment. The only niggle I
> have with it is why it reads +10dB for a 0dBu signal? I can live it it
> though!
>

It's still crippled with the min. .1% full-scale... And the fact that it's
neither tiny nor rackable 9without the 'unobtainable" kit) is another
weirdness... I had to build a little shelf for mine inside a rack...
-dim

> Geoff Tanner
> Phoenix Audio International LLC
> Aurora Audio International
> www.auroraaudio.net

[Mike Rivers]

In article <Xuu%a.4778$Cd2.4401@nwrdny01.gnilink.net> helpdesk@666.com writes:

> Or save yourselves a few bux and buy a 331A...

Or spend a few more bux and get an NTI Minilyzer. Whatever floats your
boat.


--
I'm really Mike Rivers - (mrivers@d-and-d.com)

[Mikkel C. Simonsen]

Shiva wrote:
>
> > The 334A is a nice, well built, piece of equipment. The only niggle I
> > have with it is why it reads +10dB for a 0dBu signal? I can live it it
> > though!
>
> It's still crippled with the min. .1% full-scale... And the fact that it's
> neither tiny nor rackable 9without the 'unobtainable" kit) is another
> weirdness... I had to build a little shelf for mine inside a rack...

My 333A is rackmountable - I thought that was standard...

What's the difference between the 333A and 334A BTW?

And does anybody know where I can get a power cord, or a plug that fits
the AC input socket? I have never had mine powered up, but I guess a
power cord would help ;-)

Best regards,

Mikkel C. Simonsen

[doug]

I replaced my power socket to be IEC so that I can always get a cord. BUT I
think you can go to an automotive supply store and look at something called
a BLock HEater. ther cord is very similar and might work
silly curved oval socket .the pin alignment looks close but I havent tried
it becasue I changed mine before I saw the similarity.

BTW a block heater is to keep your motor warm in winter up here in Canada.
if you are in the lower states it may be hard to find one.

Doug

"Mikkel C. Simonsen" <mcs@post5.tele.dk> wrote in message
news:3F3FE554.28AC@post5.tele.dk...
> Shiva wrote:
> >
> > > The 334A is a nice, well built, piece of equipment. The only niggle I
> > > have with it is why it reads +10dB for a 0dBu signal? I can live it it
> > > though!
> >
> > It's still crippled with the min. .1% full-scale... And the fact that
it's
> > neither tiny nor rackable 9without the 'unobtainable" kit) is another
> > weirdness... I had to build a little shelf for mine inside a rack...
>
> My 333A is rackmountable - I thought that was standard...
>
> What's the difference between the 333A and 334A BTW?
>
> And does anybody know where I can get a power cord, or a plug that fits
> the AC input socket? I have never had mine powered up, but I guess a
> power cord would help ;-)
>
> Best regards,
>
> Mikkel C. Simonsen

[Geoff Tanner]

"Mikkel C. Simonsen" <mcs@post5.tele.dk> wrote in message
news:3F3FE554.28AC@post5.tele.dk...
> Shiva wrote:
> >
> > > The 334A is a nice, well built, piece of equipment. The only niggle I
> > > have with it is why it reads +10dB for a 0dBu signal? I can live it it
> > > though!
> >
> > It's still crippled with the min. .1% full-scale... And the fact that
it's
> > neither tiny nor rackable 9without the 'unobtainable" kit) is another
> > weirdness... I had to build a little shelf for mine inside a rack...
>
> My 333A is rackmountable - I thought that was standard...
>
> What's the difference between the 333A and 334A BTW?
>
> And does anybody know where I can get a power cord, or a plug that fits
> the AC input socket? I have never had mine powered up, but I guess a
> power cord would help ;-)
>
> Best regards,
>
> Mikkel C. Simonsen

Hi

The 333A (I believe) doesn't have the RF demodulator THD measurement option
of the 334A... otherwise I think that they are identical.
I'm glad I have a power cord with mine... I didn't notice that it was
anything different from a regular IEC!

Geoff Tanner
Phoenix Audio International LLC
Aurora Audio International
www.auroraaudio.net

[Scott Dorsey]

In article <3F3FE554.28AC@post5.tele.dk>,
Mikkel C. Simonsen <mcs@post5.tele.dk> wrote:
>Shiva wrote:
>>
>> > The 334A is a nice, well built, piece of equipment. The only niggle I
>> > have with it is why it reads +10dB for a 0dBu signal? I can live it it
>> > though!
>>
>> It's still crippled with the min. .1% full-scale... And the fact that it's
>> neither tiny nor rackable 9without the 'unobtainable" kit) is another
>> weirdness... I had to build a little shelf for mine inside a rack...
>
>My 333A is rackmountable - I thought that was standard...

You can get it with or without the optional flanges.

>What's the difference between the 333A and 334A BTW?

The 334 definitely has a lower scale and can read lower distortion levels.
May have other differences... I haven't used a 333 in ages.

>And does anybody know where I can get a power cord, or a plug that fits
>the AC input socket? I have never had mine powered up, but I guess a
>power cord would help ;-)

Belden used to sell them, but Belden sold off their cordage division. Whoever
owns it now is still making them... Steve Lampen will know.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."