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: Schottky Diode degradation / Replacement in instrument Sram Battery backup circuits ?
They almost certainly did specify a Schottky with an appropriate leakage spec. The problem wasn't the spec -- it was that the leakage increased beyond spec over time. More things can go wrong with the
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Tom Lee
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#146601
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Re: Schottky Diode degradation / Replacement in instrument Sram Battery backup circuits ?
That's what they say - but why go to? a 'regular' diode?? And go from 0.3 to 0.7 fwd drop. A better replacement would be a schottky with a low leakage spec. However, some power down circuits do get
By
Edward Prest
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#146600
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Re: 8566B Calibration
Thanks, Bruce. I'll have some time free later today to try this suggestion of yours. We'll see if it reveals anything in due course...
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Jinxie
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#146599
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Re: 8566B Can't Calibrate
On Sun, Sep 1, 2024 at 09:36 PM, pianovt wrote: > > Vladan, that does make good sense and would certainly be worth trying. I > just want to try any other possibilities first, as I don't have the time
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Jinxie
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#146598
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Re: Instrument Sram ( non Dallas ) Battery replacement: Original 3.0V Li+ >> To 3.6V Li+ & Schottky Diodes ?
CR123 are available in 3.0V and 3.6V The 3.0V version is common in camera shops.
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dbztuzujdhgtrjzthxh
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#146597
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8497K attenuator overhaul
I need to do an o-ring replacement of an 8497K attenuator with N connectors and a Viking control cable. I have done this on an attenuator with SMA connectors and an IDC ribbon socket. Disassembly on
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vk2bea
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#146596
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Re: 8566B Calibration
You should probably do the following: 0) Connect CAL OUTPUT signal to RF input. 1) Press GREEN BUTTON, then RECALL followed by 8.? Adjust the amplitude to -10db using AMPLITUDE ADJUST next to the RF
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Bruce
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#146595
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Re: When is calibration data read off the internal bus on the HP 3478A
AWolf provides a pretty nice description, (with cautions) about what is going on on the 3474a Bus. A goofy short can render the Sram loss and ... demise. He describes an Fram mod, deleting the need
By
gren
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#146594
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Re: When is calibration data read off the internal bus on the HP 3478A
Also See: https://k6jca.blogspot.com/2017/12/save-and-restore-hp-3478a-calibration.html using Matlab by Jeff & Dick Benson rick
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gren
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#146593
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Re: When is calibration data read off the internal bus on the HP 3478A
Steve, See: https://tomverbeure.github.io/2022/12/02/HP3478A-Multimeter-Calibration-Data-Backup-and-Battery-Replacement.html
By
gren
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#146592
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Re: Schottky Diode degradation / Replacement in instrument Sram Battery backup circuits ?
Negative. It is indeed directly due to Schottky diode degradation, as stated in the Hp Service Bulletin 4274a-12?? ,? referenced above: " Improvement for Memory Backup Battery" ... " Symptom and
By
gren
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#146591
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Re: When is calibration data read off the internal bus on the HP 3478A
You're pointing out a problem "we" all will have. The people who are experts in the equipment we *can* repair are vanishing, as is their knowledge.? I think that the answer is going to be an
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Harvey White
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#146590
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Re: HP 141T Power Supply Help Needed
Spent some time today checking through the rest of the line - basic checks on passives look ok. Transistors look ok. Noticed the driver getting hot though. Not making any progress, despite trying to
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Bill Berzinskas
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#146589
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Re: Almost free to good home, HP 3570A/3330B system + manuals and spares
The 3570A system is spoken for.
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Precaud
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#146588
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Re: When is calibration data read off the internal bus on the HP 3478A
Damn, if only we hadn't lost George Hnatiuk not long ago. :-( He could've answered that question right off the top of his head. One approach to make this determination is to put a chip clip on the
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Dave McGuire
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#146587
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Re: "Maximum input 0VDC"
That's what happened with a Marconi signal generator I have. It was quite a high-end one for its day and still fetches quite a tidy sum on Ebay, so I really wanted to get it fully working if at all
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Jinxie
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#146586
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Re: "Maximum input 0VDC"
"My last 2 used SA's puchases both had blown 10 and 20dB attenuator wafers. Never risk DC damage for a half dB. There is no repair possible, just used scrap parts. Lucky for me the mixer diodes were
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Jeff Kruth
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#146585
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Re: HP 141T Power Supply Help Needed
tiny update to the above, replaced +100v driver and that helped immensely! +100, -100, +248 all work, adjust and appear happy! I gained .5v on my -12.6 line, but its still sitting at -3v. wrote:
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Bill Berzinskas
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#146584
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When is calibration data read off the internal bus on the HP 3478A
This question is for a future project. The HP 3478A has an internal bus that is used to read data from an internal memory with battery backup. I'm interested in knowing when calibration data is read
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Steve Holland
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#146583
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Re: 8566B Can't Calibrate
What are these O rings? I have a spare attenuator if the installed one is blown. Not sure if it's compatible or not but it's an electronically-switchable type and does 10 through 70dB. Model number's
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Jinxie
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#146582
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