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 ¦¸) 350C
- Attenuator set (600 ¦¸) 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?
- 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 / 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.
- 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)
- 2-Terminal BNCs.
- 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
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Re: 8566B Attenuator Service
I'm unclear as to what to look for to be honest. I've taken another picture and fortunately you have eyesight normally only available to birds of prey. See if you can see those switches?
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Jinxie
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#146998
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Re: 8566B Attenuator Service
That looks like the 8566 assigned part number, it may or may not be a 33320 series attenuator but does the assembly have the internal switches on the side of the coils?
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Adrian Nicol
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#146997
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Re: 8566B Attenuator Service
Adrian, there are no markings on this attenuator body which indicate that it's a 33320 series one. It says on the front label "85660-60121 ATTENUATOR / 70dB" so I ( I@m ) 'm not sure how much - if any
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Jinxie
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#146996
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Re: 8566B Attenuator Service
Not sure if you saw my other reply a few minutes back?? I'm assuming this attenuator is the style that has the internal coil switch contacts - if it's the 'select' coil that's stuck on, have you
By
Adrian Nicol
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#146995
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Re: 8566B Attenuator Service
Ah, got it now!
By
Steve - Home
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#146994
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Re: 8566B Attenuator Service
Yeah, I get that, Steve, but this is not the issue with this pad's solenoid. It flicks back and forth freely when there's no power applied. But once it's energized to 'on' it's stuck there and can't
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Jinxie
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#146993
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Re: 8566B Attenuator Service
One of the most common causes I¡¯ve seen of stuck attenuator sections is decomposing o-rings caused by attempts to clean the attenuator contacts with chemicals that attacked the o-rings. They become
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Steve - Home
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#146991
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Agilent E4406 fails to turn on
Hi all,
My E4406 won't turn on so I've pulled it out the PSU, and apart from some suspicious RIFA caps it appears OK.
I've also gone over the Fan control board on the suggestion that some 10k or
By
Tim Tuck
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#146990
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Re: 8566B Attenuator Service
Hi, just realised that the attached page 5 of the 33320 service manual will probably explain it way better than me!
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Adrian Nicol
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#146989
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Re: 8566B Attenuator Service
Okay, are you sure the internal switching contacts are working as intended?
It's been a few years since I was inside one but my memory is that there are two per solenoid?
Effectively a N/C one when
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Adrian Nicol
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#146988
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Re: GPIB scripting software?
I access GPIB devices directly (GPIB) or via USB using Visual Basic.
It is free as part of Visual Studio, easy to use and understand, and works with NI VISA and KEYSIGHT.
ed
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Ed (scskits)
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#146987
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Re: 8566B Attenuator Service
Okay. Well I have an 'intermediate update.' Cycling through 0 to 70dB I can see all solenoids switching seemingly normally - apart from the second from left in the photo. Commencing with all
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Jinxie
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#146986
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Re: GPIB scripting software?
Hello Ulf,
Python is another possibility. If you have not used python before, you
should find a lot of info online.
Even ChatGPT has gotten fairly good at writing python code, so if you give
it a
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Askild
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#146984
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Re: GPIB scripting software?
Hi Ulf,
I have developed some Python routines that do just that: control the HP8970B/HP8971C/HP8673B. I can send them to you. They are basically testroutines, but set up the system correctly and wil
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Harke Smits
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#146983
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Re: GPIB scripting software?
Simple GPIB routines can be sent to devices using MS Excel if you enable the developer tab in Excel. This gives access to a Visual Basic GUI.
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jmr
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#146982
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GPIB scripting software?
Looking for suggestions regarding useable GPIB script routines
that can be used for setting up a system with 897B/8971C and a Local
oscillator system. It does take some time doing this step by
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Ulf Kylenfall
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#146981
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Re: 8566B Attenuator Service
I believe it's because the 'push' and 'pull' forces from the solenoid to the actuator rod are applied axially through the O-rings, so if the ring is too squishy or thin (or hardly there at all!) then
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Adrian Nicol
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#146979
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Re: HP attenuator O-rings
Hm, the description there says: "Silicone elastomers as a group have relatively low tensile strength, poor tear and wear resistance." Which might be a problem in this application (moving shaft)?
It
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Marko Cebokli
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#146978
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Re: 8566B Attenuator Service
Incidentally, if anyone can explain why partially perished o-rings which are still in-situ can cause problems to the functioning of these attenuators I'd like to be disabused of my ignorance on the
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Jinxie
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#146977
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Re: 8566B Attenuator Service
Dan, you are quite right of course and it's good to point that out for anyone who may be reading this thread for advice in the future.
For the DC test I was only going to use 200mV and of course - IRO
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Jinxie
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#146976
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