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: (OT?...) Sticky labels for aluminum and other typical materials panels
Glen, I was wondering about that - great piece of information. Thank you. Radu. [email protected]> wrote:
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Radu Bogdan Dicher
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#151924
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Re: HP8757A Display Problem (Scalar Network Analyzer)
Hi again Philip. When I isolate the display susystem as both you and the 1345A manual says, I do get the test pattern which you show (and with which I am familiar as it is also found under the SYSTEM
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Trevor Gale
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#151923
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Re: HP8757A Display Problem (Scalar Network Analyzer)
Isn't the 1345A the smaller ~5" version used in eg. 3577VNA? Ulf SM6GXV
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Ulf Kylenfall
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#151922
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Re: (OT?...) Sticky labels for aluminum and other typical materials panels
When discussing P-Touch labels, bear in mind that M-type machines are a thermal ink process and TZ-type machines use a thermal transfer process that is self-laminating. M-type is substantially more
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Glen Hoag
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#151921
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E4407B schematics
Hi Group, My E4407B has the problem of 'LO unlock'. I am in the process of repairing the unit by replacing a frequency divider. I am following the youtube video in the SignalPath channel. Before
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David Rodriguez Martin
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#151920
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Re: 1 mw - 0dbm lab calibration
Hi Harke, thanks! It's interesting to see the return loss plot of the 8478B sensor out to 3 GHz. I've started a thread about the input return loss of the 478A sensors and how they have changed
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jmr
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#151919
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Re: HP 478A Thermistor Sensor. Input return loss and matching
The other thing to bear in mind is that the latest 478A service manual clearly shows that all versions of the standard 478A sensor (note that this doesn't include H7x options) can be used with both
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jmr
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#151918
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Re: HP 478A Thermistor Sensor. Input return loss and matching
Just to keep things in perspective, the input VSWR will be a function of the design of the 478A sensor and will also be affected by the performance of the 432A power meter to some degree. However, if
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jmr
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#151917
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Re: HP8757A Display Problem (Scalar Network Analyzer)
Philip, I thank you for the information; yes it may be that we were typing at the same time! I shall look further this morning and see what I find.
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Trevor Gale
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#151916
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Re: (OT?...) Sticky labels for aluminum and other typical materials panels
That's actually Front Panel Express ( https://www.frontpanelexpress.com/ ) , and I think they're great - I use them quite a bit.? They have their own specialty CAD package to design a front panel,
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Mark Moulding
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#151915
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Re: Looking for service manual/schematic for early E3611A DC Power Supply
Thanks for all the info! Unfortunately, none of those schematics match the layout in my instrument. For example, the PCB I have has no C20 (connected to pins 2 and 3 of U4), or any provision for C20
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Jared Cabot
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#151914
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Re: HP 478A Thermistor Sensor. Input return loss and matching
In case any purists want to scoff at this matching technique and think it is a bodge, I suggest they take a look inside a typical HP power meter and look at how the 1mW oscillator is designed and how
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jmr
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#151913
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Re: HP 478A Thermistor Sensor. Input return loss and matching
On Sat, 17 May 2025, jmr via groups.io wrote: There are separate manuals for all those Hxx 478A sensors. There was a whole bunch of those, all seem to be nearly identical according to their manuals.
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Sergey Kubushyn
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#151912
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Re: HP 478A Thermistor Sensor. Input return loss and matching
Here's a screenshot from my old Agilent VNA showing the input VSWR of my 478A sensor with the matching section added at the input. You can see that it now achieves a really low VSWR at 50 MHz. Because
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jmr
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#151911
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Re: HP 478A Thermistor Sensor. Input return loss and matching
On Sat, 17 May 2025, jmr via groups.io wrote: H72 is SPECIFICALLY designed for low frequency measurements, especially that 50MHz one. It is not high frequency device going into gigahertz range so it
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Sergey Kubushyn
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#151910
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Re: HP 478A Thermistor Sensor. Input return loss and matching
Just to clarify, the latest service manual for the standard 478A sensor is available on the Keysight website and this lists the different internal circuits for the early and later variants of the
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jmr
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#151909
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Re: HP 478A Thermistor Sensor. Input return loss and matching
OK thanks. I think the standard 478A sensor uses a tiny (and very thin) SMD disc cap of about 1350pF for the AC ground end of the thermistor. The later 478A sensor uses 1200pF here.? I don't know
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jmr
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#151908
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Re: Recap 6205B
Hi Joe, If you just change some parts without knowing why you only make it worse. You give exact 0 information what was your error-picture, what you did or what voltages did you measure. My advice:
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RolandK
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#151907
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Re: HP 478A Thermistor Sensor. Input return loss and matching
On Sat, 17 May 2025, jmr via groups.io wrote: There are 0.1uF C0G capacitors in 1206, nothing special. I have a reel of those and use them often. Dunno what capacitors are inside H72 probe although I
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Sergey Kubushyn
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#151906
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Re: HP 478A Thermistor Sensor. Input return loss and matching
Here's an image showing the completed matching adaptor that contains the series 11nH inductor. This is constructed using two precision N bulkhead connectors, one male and one female. I salvaged them
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jmr
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#151905
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