CHECK OUT THE WIKI The purpose of the wiki is mainly to allow you to find information on instruments, either from either

The model number
The function(s) listed below. Some instruments have multiple functions - for example, the 4195A is a VNA, spectrum analyzer and an impedance analyzer. Therefore the 4195A is listed in multiple categories

Please also check out HPWiki available here:

Accessory kits - various types
AC power analyzers - PA2201A and PA2203A
AC power supplies 6811C, 6812C, 6813C
Airlines
Arbitrary waveform generators M8194A
Amplifiers?493A, 495A?
Attenuators (optical) 8156A, 8157A, 8158B, 81566A, 81576A,?
Attenuators (RF) 8494A
Attenuator set (500 Ω) 350C
Attenuator set (600 Ω) 350D
Attenuator switch driver
Audio analyzers? 8903A, 8903B, 8903E,? ?
Base station test sets
Bit error rate testers (BERTs)
Cables
Capacitance meters U1701A, U1701B, 4272A, 4278A, 4279A
Capacitor Bridge 4270A,
Capacitor standards 16380A, 16380C,?
Carrier noise test setsi
Cesium frequency standards
Clamp ammeters
Close field probes
Crystal Impedance E4915A, E4916A
Data Acquisition Systems (DAQs)
DC power analyzers
DC power supplies 6030A , 6031A , 6032A, 6033A, 6035A, 6131C, 6621A, 6622A, 6623A, 6624A, 6627A, 6255A, 6645A, 6671A, 6672A, 6673A, 6674A, 6675A, 62003A, 62003C, 62003E, 62004A, 62004B, 62004E, 62005A, 62005B, 62005E, 62006A, 62006B, 62006E, 62010A, 62010C, 62010E, 62012A, 62012C, 62012E, 62015A, 62015C, 62015E, 62018A, 62018C, 62018E, 62024A, 62024C, 62024E, 62028A, 62028C, 62028E, 62048A, 62048C, 62048E
Delay lines
Detectors
Device current waveform analyzers
Digital communications analyzers
Directional couplers
Distortion analyzers 330B, 330C, 330D, 331A, 332A, 333A, 334A, 339A, 8903A, 8903B, 8903E,???
Dynamic measurement DC source
Electrometers
Fading simulators
Femto ammeters
Filters
Frequency counters 522B, 5342A 5343A 5352B
Frequency standards?
- Cesium frequency standards 5090A
- Off-air 60 kHz frequency standards
- Off-air 200 kHz frequency standards
- Off-air GPS frequency standards
- Quartz frequency standards 105A, 105B
Function Generators ? 3310A,? 8165A,
GPIB controllers, extenders, cables etc.
GPS frequency standards
Harmonic mixers
High resistance meters 4339B
- High resistance meter fixtures 16008B
HEV EV Grid Emulators and Test Systems
In-circuit test systems
Impedance analyzers 4195A, 4291A, 4291B, 4395A, 4396A, 4396B, 4294A, E4990A, E4991A
Impedance Analyzer Accessories
- Impedance Test Kit 41951A,?
- Test Fixture Adapter 16099A
- Test Fixture 16034G, 16034H, 16047A, 16191A, 16192A, 16193A, 16093B, 16194A, 16452A,
- Test Head 4291B
Impedance / Gain Phase analyzer 4194A
Impedance Meter 4193A,
Isolators
LCR meters? U1701A, U1701B, U1731A,? U1731B, U1731C, U1732A, U1732B, U1732C, U1733C, 4191A , 4192A, 4194A, 4195A, E4196A,? 4216A, 4260A, 4261A, 4262A? 4263A, 4263B, 4271B, 4274A, 4275A, 4276A , 4277A, 4284A, 4285A, 4286A, 4287A, 4291A, 4291B, 4294A, 4332A, 4342A, 4395A, 4396A, 4396B, E4980A and E4980AL
LCR meter calibration devices? 16380A 42030A? 42090A, 42091A and 42100A
LCR meter accessories
- 2-Terminal BNCs.
  - 41900A, 41901A
- 4-Terminal Pair (BNC connectors)
  - Cable extension 16048A, 16048D, 16048E, 16048G, 16048H
  - DC current bias accessories 42841A, 42842A, 42842B, 42842C, 42843A
  - DC voltage bias accessories 16065A, 16065C,
  - Kelvin clips 16089A, 16089B, 16089C,16089E
  - Lead Components 16047A,16047B, 16047D, 16047E
  - Material 16451B, 16452A
  - Probes 42941A
  - SMD 16034E, 16034G, 16034H
  - 2-port 16096A
- 7 mm (APC7)
  - APC-7 Connector Repair Kit 11591A
  - Binding post 16093A, 16093B
  - DC voltage bias accessory 16200B,
  - Lead components 16092A
  - Material 16453A, 16454A
  - SMD? 16192A, 16194A, 16196A, 16196B, 16196C, 16196D, 16197A, 16198A
LCZ meters? 4276A, 4277A,
Lightwave clock / data receivers
Lightwave converter
Lightwave component analyzer
Lightwave measurement system mainframes
Lightwave polarization analyzers 8509B
Logic analyzers
Nemo wireless network solutions.
Noise and interference test set
Noise figure analyzers
Noise sources 346A, 346B. 346C ,
Matching pads (50 ohm to 75 ohm or similar)
Materials test equipment
Microwave repeaters
Microwave downconverters 70427A
Microwave / THz sources
Milliammeter 428B
Milliohm meter
Mobile communications DC source
Modular instruments
- AXIe
- Data acquisition (DAQ)
- USB
- PXIe
Modulation analyzers
Multimeters 427A, 970A
Optical attenuators
Optical heads
Optical sources
Optical spectrum analyzers
Oscilloscopes 120A, 120AR, 120B, 122A, 130A, 130B, 130BR, 130C, 140A, 140B, 141A, 150A, 150AR, 160B, 180A, 180AR, 180CD, 181A, 181AR, 181T, 181TR, 182C, 182T, 183A, 183B, 184A, 184B, 185A, 185B, 1200A, 1200B, 1220A, 1221A, 1703A, 1707A, 1707B, 1710A, 1710B, 1715A, 1722A, 1725A, 1726A, 1740A, 1741A, 1742A, 1743A, 1744A, 1746A, 1980A, 1980B, 5403A, 6000A, 6000L, 16533A, 16534A, 54100A, 5410B, 54100C, 5100D, 54111D, 54120A, 54120B, 54200A, 54501A, 54502A, 54503A, 54504A, 54520A, 54520C, 54540A, 54540C, 54542A, 54542C, 54600B, 54601A, 54601B, 54602B, 54603B,? 54645A, 54654N, 54710A, 54720A, 54750A, 54825N, E1428,?
Oven controlled crystal oscillators (OCXOs)
Pattern generators
PCM terminal test set
Phase noise measurement
Pico ammeters
Printers 2225
Plotters 7470A, 7475A?
Probes
Protocol analyzers and exercisers.
Power booster test sets
Power meters 431A, 431B, 431C, 432A, 435A, 435B, 437B, 438A
Power splitters
Power supplies
Pulse generators
Q-meters 4342A?
- Q-meter calibration inductors 16470A
Reflection transmission test set
Return loss module (optical)
Relays / switches / switch matrices (optical)
Relays / switches / switch matrices (RF)
Resistor standards 42030A?and 42100A
S-parameter test sets
Scalar network analyzers
SCSI bus preprocessor interface E2324A
Selective level meters 3746A
Semiconductors
Semiconductor parameter analyzers 4145A, 4155B, 4156B,
Signal analyzers
Signal generators / sweep generators / signal sources / oscillators 200CD, 201B, 209A, 204D,? 608A,? 8165A
Software
Source measure units
Spectrum analyzers 4195A,???
Switch control units
SWR meter 415E?
Time interval? counters
Time mark generator 226A
Timing and data state modules
Torque wrenches
Transmitter testers
Trigger modules
Ultrasound transducers
Universal bridge? 4260A, 4265A, 4265B?
Vacuum tube voltmeter 410C
Vector Impedance Meter 4193A, 4800A, 4815A
Vector Network Analyzers (VNAs) 4195A,? 8510A, 8510B, 8510C, 8753A, 8753B, 8753C, 8753D, 8753E, 8753ES, 8752ET, 8719A, 8719B, 8719C, 8719D, 8720A, 8720B, 8720C, 8720D, 8720ES, 8722A, 8722B, 8722C, 8722D, 8722ES,
Vector Network Analyzers (VNA) calibration kits 85032B, 85032E, 85033C, 85033D, 85033E, 85050B, 85050C, 85050D, 85052B, 85052C, 85052D, 85054A, 85054B, 85054D, 85056A
Vector Network Analyzer (VNA) verification kits
Vector Signal Analyzer 89650S, 89600S
Vector voltmeters 8405A, 8508A,
VXI mainframes 70000B, 70000C
Waveform and function generators
Waveguide to waveguide and waveguide to coaxial transitions.
Wireless 58 OTA chambers
Wireless channel emulators
Wireless network emulators
Wireless communication test sets

Question: Is there a correct* way to get an HP T141/855X Spectrum Analyzer to sweep logarithmically? (* as in: HP provided specific instructions/equipment for this)

#151865

(Bear with me, I’m still learning how to use this platform)

I’m primarily interested in obtaining logarithmic sweeps/bode plots while using my 8556A audio frequency plugin and 8570A Storage Normalizer specifically for audio amp, loudspeaker, and crossover characterizations. Its native linear sweep/plotting makes it incredibly difficult to distinguish things at the low end of the frequency range; effectively prohibiting one from gathering useful data from a single 20Hz - 20KHz pass (I instead have to break up the single measurement into multiple, across smaller ranges… a very inconvenient endeavor).

Did HP ever publish any sort of instructions or app notes that address this? Did they produce any accessories/equipment specific for this?

I understand there were logarithmic converters available for XY plotters, but I’ve yet to get any confirmation as to whether or not they would be best applicable to my specific needs, and/or how they would work in conjunction with the 8570 normalizer.

Thoughts? Recommendations?

Thanks-

Re: Twelve(+/-) bins of original HP/Agilent manuals free for pickup in San Diego

#151864

I'm resurrecting this thread as I've taken a chunk of these manuals at that time with the intention of figuring a way to scan them or make them available some other way. In the meantime, my storage capabilities have (just) diminished,?and I'm not sure when I'd be able to do?anything with these. I'm looking for another custodian in the LA metro area.

Anyone willing to take these? We're talking about four or so boxes 21"x16"x15".?

Show quoted text

On Tue, Sep 17, 2024 at 12:07?PM S L via <onerossocorsa328=[email protected]> wrote:

Greetings, Stan,

?

Would you have any power supply-related documentation?

I'm in town.

?

Thanks.

Sam

Re: ftp.agilent.com tar-file on archive.org

#151863

I'm not sure, but the older versions are much smaller in size at maybe 100Mb.

On the wayback machine, all the older 78xxA downloads show up as access forbidden.

It is still possible to get the main 7800A SW but all the instrument specific programs (eg for PSA, ESA, PSG etc) report as access forbidden.

I'm not sure what this means. I know that it wasn't always like this, because I can remember downloading some of them maybe 7 years back on the wayback machine and I was pleased that this was possible. However, when I look at the same archive today (same archive date) they are all causing an access forbidden message. None of them can be downloaded today so something has changed.

Regards

Jeremy

Re: ftp.agilent.com tar-file on archive.org

#151862

Hi Jeremy,

I am also looking for the N78xx software but from what I know all versions need a license. Or this not valid for the older versions and only new ones need the license?

Regards,
Razvan

Show quoted text

On 15/05/2025 20:23, jmr via groups.io wrote:
Thanks for this. There's lots of useful stuff there.
Does anyone have a link to an older archive of the Agilent website that might still have the N7810A calibration SW for the old E4440A spectrum analyser? I'm thinking in terms of the Win 98SE through to XP era. I managed to find lots of N78xx SW for other items of test gear on the Wayback Machine from this era but not the N7810A SW as the Wayback Machine didn't store this for some reason.
I know there are newer versions of N7810A available from Keysight but I wanted the older version from the Win XP era.
--
Regards
Jeremy

Re: ftp.agilent.com tar-file on archive.org

#151861

Thanks for this. There's lots of useful stuff there.

Does anyone have a link to an older archive of the Agilent website that might still have the N7810A calibration SW for the old E4440A spectrum analyser? I'm thinking in terms of the Win 98SE through to XP era. I managed to find lots of N78xx SW for other items of test gear on the Wayback Machine from this era but not the N7810A SW as the Wayback Machine didn't store this for some reason.

I know there are newer versions of N7810A available from Keysight but I wanted the older version from the Win XP era.

Regards

Jeremy

Re: ftp.agilent.com tar-file on archive.org

#151860

I download the whole archive a few years ago. I also had issues with the download at that time but it was easy to resume the download because I started it using "wget".

If you don't have a Linux box you can use the wget for Windows in a Command Prompt window.

You can download from here the latest wget binary for Windows.

Use the following command:

wget -c 

Best regards,
Razvan

Show quoted text

On 15/05/2025 19:25, Wolfgang Schraml via groups.io wrote:
The Internet Archive has what appears to be a snapshot of ftp.agilent.com from 2014. Link is  ftp.agilent.com <>.
The file is rather large (317GB) and an attempt to download failed after approximately 220GB. I don't want to blow my monthly data plan and thus decided to wait a little before attempting it again.
The Internet Archive allows the download of individual files from the tar-ball, but I'd rather have a replica of the whole site to browse and explore locally.
Has anyone successfully downloaded this tar file? Don't want to waste time and bandwidth if the file is known to have issues.
Thank you,
Wolfgang
KI7PFX

ftp.agilent.com tar-file on archive.org

#151859

The Internet Archive has what appears to be a snapshot of ftp.agilent.com from 2014. Link is .

The file is rather large (317GB) and an attempt to download failed after approximately 220GB. I don't want to blow my monthly data plan and thus decided to wait a little before attempting it again.

The Internet Archive allows the download of individual files from the tar-ball, but I'd rather have a replica of the whole site to browse and explore locally.

Has anyone successfully downloaded this tar file? Don't want to waste time and bandwidth if the file is known to have issues.

Thank you,

Wolfgang

KI7PFX

Re: HP 432B display

#151858

Oh, you know what. I missed that the display is for a "B" model. Sorry, I don't have one.

Dave - W6TE

DXCONNECTION

Re: 5334A part reference

#151857

I appreciate all the input on the replacement.? Under the circumstances I am going to see if I can avoid replacing this part as I do not have the facilities, or the nerve, to fiddle with EPROMs.? My new concern is replacing A1C19, the Sprague 3900uF cap.? Mine let go yesterday in spectacular fashion, magic smoke, magic goo, you name it.? I have not traced the failure to any other component,. yet, but I still need the cap.

Thanks and cheers,

Joe White
KW4YW

Re: 5334A part reference

#151856

Excellent teardown and photos!

The service manual does list A1U19, the Executive microprocessor, as two items; the microprocessor and UVPROM, those have different part numbers. MK38P70/02D and MBM27C64-25. HP seems to have retained that. Yours also has a newer firmware than mine (05334-8003).

There are two additional piggybacked microprocessors in my counter, the Measurement microprocessor U29 and the HPIB processor U17. Both seem to have been swapped out for mask ROMs at some point in the production run. They're both the /02H variant of the Mostek with a TI TMS2532JL-45 on top.?

I'm not sure exactly when my counter was manufactured but it's filled with 1983 date codes on all the ICs.

Show quoted text

On Wed, May 14, 2025 at 10:03?PM BI4LBK via <chrispotma=[email protected]> wrote:

?

I remember that in my 5334A, the PROM was stacked on the processor. It was nothing special, just a 27C64. I have the PROM dump, it will take a few days to find the file and upload it - please wait.

?

?

?

Edward Koloski

Re: 5334A part reference

#151855

For the option 010 you might look at this item.

Greg

Re: 5334A part reference

#151854

Ed,

I remember I found an Easter egg in the PROM of the 5334A (this is a picture from a few years ago):? you can see the name of the programmer in the ROM. Shalom Kattan, who later founded Carmel instrumens.

Re: 5334A part reference

#151853

I remember that in my 5334A, the PROM was stacked on the processor. It was nothing special, just a 27C64. I have the PROM dump, it will take a few days to find the file and upload it - please wait.

Re: 5334A part reference

#151852

Jim,

That is a truly fascinating bit of information, and thank you for sharing it. It makes sense that HP would eventually replace the microprocessor and UVPROM with a more cost effective mask ROM, assuming a large enough production quantity. I suspect that may be the case with this counter, given the service manual designating a single part number and the original question that started this thread. Good for HP's bottom line at the time, not so much for repairability years on down the line.

If that's the case then I think there's a unique opportunity here. There's a known microprocessor presumably with a documented instruction set, and a UVPROM that can be read. On the other hand, reading the contents of a mask ROM is possible but not as easily as this. From there, if parts are not available, it's not unreasonable to port the fimrware to a modern replacment to repair an instrument.

That motivates me to extract and archive the contents. I'll have to read the datasheet and possibly wire up an adapter for my EEPROM programmer. If I can safely read the contents of this UVPROM, and the others in my counter, I will do so and make the contents available.

Re: 5334A part reference

#151851

开云体育

The microprocessor you have was primarily used as a development part.

The PROM was in most of the Mostek microprocessors for one time mask programming.?

What you have allowed the developer to write the program into a UV erasable EPROM

and test the program until they went to production with one time parts.

Sometimes on low run products, the development style parts were cheaper to use than having

hundreds of one shot parts mask programmed.

Jim

Show quoted text

From: [email protected] <[email protected]> on behalf of Ed Koloski via groups.io <ekoloski@...>
Sent: Wednesday, May 14, 2025 5:46 PM
To: [email protected] <[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] 5334A part reference

Joe,

I'm not sure if HP changed this part out at some point. I popped the hood on my 5334A and found a microprocessor with a piggybacked ROM, both of which in place of A1U29, yet the service manual only lists the one part. In mine the Microprocessor is a Mostek MK38P70/02H. The ROM plugged into it is a TMS2532JL-45 (HP PN: 1818-0762). From what I recall this ROM has a fairly unique pinout, TI swapped some pins around, so be cautious when sourcing replacements. There's also the issue of finding a dump of the ROM, to program the replacement.

Regarding the oscillator. This is a little more effort than a drop in replacement, but short of finding a broken 5334A to harvest from, it's a viable approach. Many years ago I made a board to adapt an HP 10811-60111 oscillator to the 5334A. That oscillator was much easier to find at the time. Details of the project are on the

Regards,

KC2FNA

On Wed, May 14, 2025 at 4:38?PM Joe White via <skinnershorse=[email protected]> wrote:

What is the replacement for part 1820-3639, IC-8-bit-4K ROM?? I am also seeking option 010, XTAL oscillator for this device.

--

Joe White
KW4YW

Edward Koloski

Re: HP 432B display

#151850

开云体育

Hi Dave

just to confirm the HP 432B is a digital meter and this is what I am looking for

The HP 432A is the analogue meter and I already have these

Regards Paul ?

Show quoted text

From: [email protected] [mailto:[email protected]] On Behalf Of Dave Smith via groups.io
Sent: 14 May 2025 15:55
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP 432B display

Hi Paul,

I have a display I can send to you.

Dave Smith - W6TE

DXCONNECTION

Re: 5334A part reference

#151849

Regards,

KC2FNA

Show quoted text

On Wed, May 14, 2025 at 4:38?PM Joe White via <skinnershorse=[email protected]> wrote:

What is the replacement for part 1820-3639, IC-8-bit-4K ROM?? I am also seeking option 010, XTAL oscillator for this device.

--

Joe White
KW4YW

Edward Koloski

HP E6380A - 8935 Frequency range

#151848

A question on the HP E6380A - 8935 test set.? Does that test set allow you to test 1.2 GHz analog FM equipment?? The set mentions the range from 1.7 to 2.0 GHz and then 400 kHz to 1 GHz from what I read.? So is there some kind of gap where say you cannot test a radio for TX/RX at 1288 MHz?? ??

Thanks - Sig