Agilent undocumented parts
First of - because you dont see it in the manual doesnt mean its not
available !
If you are looking for a part forget Parts ID, they usually are no
help
Your first stop always should be the Agilent Parts website, enter the
model# and it pulls up all parts assigned to this product, you will
find that alot of parts listed there are not found in the manual,
this also goes for manuals !
Some of the parts have pictures which will help you to indentify them.
Knowing the HP parts systematic also helps, usually parts start with
the model number and some zeros, Parts for a HP436 for example would
start 00436-xxxxx parts for a 8360 sweeper: 08360-xxxx for a
70910 : 70910-xxxxx, thin film circuits and RF Assemblies start with
5086-xxx or 5087-xxxx
CRT usually start with 2090-xxx
Another nice feature is a button that shows you which other products
use the part, that makes it easier to find a sacrificial lamb for
parts, Agilent was strong in design reuse, so alot of parts you find
in different products.
Example: the display used in 8753A/B units also was used in the
8757A , the display of the 3577 was used in the 4145 and 8756 and the
Color display used in the 8510C also fits the 8753C or D and the
70004A there was a time when 70004A were dirt cheap when you could
buy a 70004A for $300 and fix a broken 8753C or D by using this
display, also look at the parts especially displays and LCD as most
of them are not made by agilent and sometimes still have the OEM
part# on them ! the displays on the 8590 for example was made by
omnivision and you can buy it from them for a fraction of the cost
agilent charges for a part, the mixer in the 11793A was made by REMEC
or RHG
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Hi
awhile ago i had posted a lot of HP Parts to give away, mostly HP5345
and 8620C stuff, i commited those to a gentleman in GB with a shipping
adress in OH, unfortunatly my PC played a trick and wiped out all my
emails so i dont have the adress anymore, so would you please email me
again with your shipping adress ?
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ESR Meter substitute circuit for MAX038
Here are details on a square wave generator circuit to replace the
MAX038. Using the values shown in the circuit diagram 100KHz results.
Some deviation from this frequency will not affect the performance of
the ESR Meter.
Notes on the substitute circuit:
Circuit Diagram:
Scope display of waveform:
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FYI,
From my fathers inbox. No personal interest.
Regards,
Jim
We have 15 pieces of the 8920B /001,004,006,013,014 for sale. These
units
have no handles. Please offer!
Thanks,
Best Regards,
Fred Liu
Tel: 408-957-8826
Fax: 408-957-8825
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More useful and little known agilent part numbers !
Back on popular demand here are a few more part numbers !
1GT1-2674 30dB 30W Attenuator cartridge for 8498A $96
1GT1-2788 5dB Attenuator Pad for 8662/8663/8664/8665 $41
1GT1-2865 10dB 26GHz pad for 8340B/8515A $28
1GT1-2866 30dB pads for 8340B $34
1GT1-2881 DC Block used in 70904A and others $6
1GT1-2902 5dB pad used in 70904A and others $18
1GT1-3235 10dB pad used in new style attenuators and 83650 $49
1GT1-3237 20dB Pad new style $48
1GT1-3587 30dB new style $50
1GT1-3737 10dB 26GHz used in 8497K 8495,33321H $18
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Re: Cleaning HP 8590 SA series soft keypad contacts ?
i always use isopropilic alcohol for those and never had any problems, use a surgical applicator (normal cottonswabs will leave fuzz) tip it in alcohol and use it to clean the rubber contacts
normally alcohol is gentle enough for the purpose
David Woodhead <david_woodhead@...> wrote:
Some of the buttons on my 8592 spectrum analyzer have become a little intermittent. I have removed the keypad assy and the rubber button assy - I will clean the board with alcahol but I'm not sure what to use on the buttons themselves - these have a conductive rubber pad that contacts the board when th ebutton is pressed. I can clearly see that some sort of light residue has built up on these. Does anyone have experience cleaning these - suggestions what to use to clean the conductive rubber pads?
Thanks,
David.
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Cleaning HP 8590 SA series soft keypad contacts ?
Some of the buttons on my 8592 spectrum analyzer have become a little intermittent. I have removed the keypad assy and the rubber button assy - I will clean the board with alcahol but I'm not sure what to use on the buttons themselves - these have a conductive rubber pad that contacts the board when th ebutton is pressed. I can clearly see that some sort of light residue has built up on these. Does anyone have experience cleaning these - suggestions what to use to clean the conductive rubber pads?
Thanks,
David.
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Re: What are HP 3253A & 3453A SRUs?
Those numbers sound strangely familar.? The 3060, 3062, and 3065 ?board test families had two specialize instruments.? One was?the ASRU (pronounced AS-RU) or Analog Stimulus and Response Unit and the other was the DSRU (pronounced DES-RU) which was the Digital Stimulus and Response Unit.? They were 4 rack unit (7 in.) high with all but the last verson of the ASRU having six terminals on the front label S, I, G, L, A, B.? You won't find either in the T&M catalog.
For those who knew how to use it, the ASRU was an awesome instrument to behold.
Mike
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-----Original Message----- From: Pete <peterawson@...> To: hp_agilent_equipment@... Sent: Mon, 5 Nov 2007 5:35 pm Subject: Re: [hp_agilent_equipment] What are HP 3253A & 3453A SRUs? Brooke, I looked up the 3253A a long time ago, so my recollection may be off. The 3253A was a combination of audio (maybe low MHz) sinewave source & phase locked vector voltmeter (high Z). It can operate as a 2-port swept analyzer. I've no idea what the other critter was. Pete Rawson ________________________________________________________________________ Email and AIM finally together. You've gotta check out free AOL Mail! -
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Mans,
I have those 3 parts available, if you need them.
Please contact me directly.
Pete Rawson
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Hi Pete,
all noted thanks for the info
Mans, 9H1GB
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On 05/11/2007, Pete <peterawson@...> wrote:
Mans,
Are the resistors you need the typical H-P low power MF parts?
If so, they would be 1/8W MF 1%.
Pete Rawson
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Re: What are HP 3253A & 3453A SRUs?
Brooke,
I looked up the 3253A a long time ago, so my recollection may be off.
The 3253A was a combination of audio (maybe low MHz) sinewave
source & phase locked vector voltmeter (high Z). It can operate as a
2-port swept analyzer.
I've no idea what the other critter was.
Pete Rawson
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What are HP 3253A & 3453A SRUs?
Hi:
No luck at Aginent or Google. What are the
3253A Analog Stimulus Response Unit and the
3453A Digital Stimulus Resonse Unit?
--
Have Fun,
Brooke Clarke
24/7 Sky-Weather-Astronomy Cam
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Re: 419A Chopper Replacement
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-----Original Message-----
From: hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...]On Behalf Of Christian A
Weagle
To: hp_agilent_equipment@...
I have a 419A Nulling Voltmeter that I just finished replacing all the
electrolytic capacitors in. This cleared up my 'after warming up no
operation' problem. However, I also had to really have my way with
both the chopper freq adj and neon current adj pots to get them to
fire _something_ like reasonably. I can't get the frequency to be
correct (too slow by close to half), and the waveform is pretty I don't know the 419A. For what it's worth, my Fluke 895A differential voltmeter had a distorted chopper waveform that was about half normal frequency. Turned out to be a short on one of the power supplies that the chop oscillator drives in addition to the choppers. Dave Wise
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Mans,
Are the resistors you need the typical H-P low power MF parts?
If so, they would be 1/8W MF 1%.
Pete Rawson
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I first want to thank all the replies and various views.
First maybe I should have provided more information.
My frequency need does not need to go past 2.5 GHz and
that is only for the RF portion of what I'm working on
which is wireless ZigBee where one of its two
RF bands is 2.4 GHz. I'm not in anyway a uWave engineer
and don't see needing to measure to 22 GHz.
I had originally hoped to hold off getting another SA
by for a while by using the one I have now, an HP portable
that goes to 1.5 GHz and with a mixer be able to work
at 2.4 GHz, but it fails self calibration, hopefully
something simple.
Now that I know I can get manuals for either, and not
needing to goto 22 GHz, I'm leaning toward a 70000 setup.
But will always keep my eyes open for a 8566B :)
Again thanks for all the replies, information and the
"Readers Digest" break down of the 70000 modules.
-pete
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Unfortunately, this hits a nerve:
"Lets face it most home labs dont give a ... about calibrated equipment,
adjusments are only to be made if you repair something."
Welllllll, that isn't true in my crowd. We'd all like to have NIST
traceable gear but as rank amateurs who can afford it?
For certain measurements (frequency and time come to mind), you can achieve
excellent results at home. But for voltage, current, impedance and various
microwave measurements (care to calibrate my loads and shorts?), it's more
difficult.
Too bad we can't figure out someway to make transportable standards that
could be shipped around
and recalibrated from time to time.
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On 11/2/07, lothar baier <microwaveengineer1968@...> wrote:
9000 calculators are not all that big, most sweepers like the 8350 and
wiltron boxes and even the old 8620 has GPIB (on the 8620 as option)
the software requires certain equipment but since its HP basic you can go
in there and change the programming codes to adapt to any source or
equipment you please !
I know the issues with the 2784 first hand, you need a software called
lotus measure and its long gone so outside of tek no one can cal this box,
this applies to all members of the family !
Many equipment pieces you need for the 8566 can also be used for the 70000
and for some there is not really a subsitute, a good example is the 3335A
thats used for several tests.
By the way there is also a automated adjustment software for the 8566.
Lets face it most home labs dont give a ... about calibrated equipment,
adjusments are only to be made if you repair something.
The problem i have with parts units is to find one that doesnt have the
exact same bad part as the one you are trying to fix, lets face it usually
you always encounter the same "offenders" if it comes to t+m so you would
have to buy two good working units and keep one for spares.
Generally with the 70000 beein newer vintage i would not expect to see as
many problems as with an old unit such as the 8566, the other thing is that
the cooling system on the 70000 is so ver dimensioned that the box simply
runs cooler and cooler temp always translates into higher reliability.
Last but not least you get more bang i.e frequency for your buck with the
70000 and if you use a 70908 you have a noise floor thats unmatched.
My alltime favorite analyzers though you cant touch or even think about
them unless you hit the lottery is R+S stuff, they really got some nice
stuff and superb specs, large Display and color but unfortunatly not
affordable even used !
John Miles <jmiles@... <jmiles%40pop.net>> wrote:
they aint cheap - i agree but at least you can get them , maybe
its time to start scanning them and put them on the newsgroup ! :)
John makes it sound so easy on the 8566B where it is not, most
custom parts on the HP analyzers are RF/Microwave related and
they are custom on the 8566 as well as the 70000
the only analyzer i have ever seen that did not have any custom
parts was a old AIL757 Dinosaur !
Fact is if the mixer breaks you are in a world of hurt no
matter if you own a 8566 or a 70000, the mixer for the high band
on the 8566 includes also the YIG filter and this sucker is not cheap.
Well there is one downside of the 70000 however i forgot about,
in order to adjust or calibrate a 70000 you need the service
software which is available fairly cheap but requires a 9000
series calculator, those however have gotten cheap nowadays so
its not really a biggy !
Well, it's a big deal if I don't have room for a 9000-series calculator.
:)
And doesn't it need a GPIB sweeper, too? Or are there manual workarounds?
You're right, in that servicing either model can be a pain. None of them
are getting any younger. But the great documentation on the 8566 will
allow
you to work around just about any problem with substitute parts, if
necessary.
The YTX is about the *only* thing I couldn't replace with surplus
microwave
parts off of eBay, or out of the Mini-Circuits catalog, if I had to. They
seem pretty reliable in my experience, but that's always a concern for
anyone who doesn't have (or can't afford) a parts mule.
-- john, KE5FX
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Hi,
In excess to my needs I have the following O/S manuals available on
real paper:
HP 8445B, automatic preselector, original hp manual in good condition:
USD 35;
HP 5245L, electronic counter, original hp manual in very good
condition: USD 40;
HP 86241A and HP 86250, RF plug-ins, nice copy with all large format
drawings: USD 30 each.
I prefer payment by Paypal. Please contact me off list for availability
and shipping cost,
Thanks,
Harke, PA0HRK
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GPIB Toolkit release with HP 3585A/B support
Thanks to a lot of help and feedback from Ron, K8AQC and Grant, G8UBN, my
GPIB Toolkit package now supports the HP 3585A/B spectrum analyzers. Quite
a few people have asked about these models, so it'll be good to get this
release out there at last.
All of the principal GPIB Toolkit apps have been tested with the 3585A:
7470.exe: Screen capture (via HP-GL/2 synthesis)
SSM.exe: Spectrum recording/playback
PN.exe: Phase-noise measurement
See -- questions/bug reports are always
welcome.
As an aside, if I'm not mistaken, all of the common Tektronix and HP/Agilent
spectrum analyzers are now supported by SSM, PN, or both. The 3585 was the
last analyzer model that could run SSM and PN but didn't yet. As such, this
will probably be the last major release for some time. Thanks again to
everyone who has helped test various analyzer models with these
applications, and/or contributed code to them!
-- john, KE5FX
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HP 5342A/5343A Sampler Assembly / Sample Rate Pot Needed
Hi, Anyone have a HP 5442A or HP 5343A Frequency Counter that you have
or are parting out? I need a U1 Sampler Assembly P/N 5088-7022. This
is the first module after the N-connector on front panel. I also neet
the Sample Rate Pot that sticks threw front panel. P/N WP4N102P105UZ,
it is a 1 meg ohm, linear taper pot, pcba mount. Mfg is CLARO
P/N2100-3607.
Any leads on these parts would be great.
Tnx
Rich KQ6EF
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Re: Need cross for HP 1901-1096 PIN diode
David, The only cross reference that I have is: NSN 5961-01-153-7606 also listed is HP 5082-5579 Additional info: Silcon, Glass enclosure, PN type 200.0 maximum breakdown voltage DC Test Frequency 100MHZ; Capacitance .3pF I know you are saying "big deal if I can't find any other cross reference." However I have found a source that mind send you to a supplier of these items. It is: www.GovSupport.com also known as: put in: 5961-01-153-7606 (as the search) and change: "Part Number" to "NSN" Down side is it lists only one supplier with only one item. At least the added info that I give might help your search in some way. Good Luck, Tom --- David Woodhead <david_woodhead@...> wrote: Can someone help me with a cross for this please;
HP 1901-1096 PIN diode.
It is not listed in th ereferences I found on
line.
Thanks!
David.
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