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: Testing Scope Probes
Yes, that's the same grounding technique I used when I did the scope rise-time experiments. The coil of wire needs to have a degree of 'spring' to it to allow a reliable ground connection. Some scope
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jmr
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#143508
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Re: Original 3245A Calibration Software
Ian had added support of the 3245a calibration to his SW (I expect you will need? 3458a). Video Blog 113, 117, 118 - HP 3245A Universal Source Repair, Mods & Upgrades (ianjohnston.com). (
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DavidK
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#143507
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Re: Testing Scope Probes
Great idea, Mikek. Especially since I can't seem to find any probe sleeves at all on Ebay.
By
Jinxie
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#143506
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Re: Testing Scope Probes
This idea of letting it on the board is such a simple but great one! I'll remember that Jim!
Renaud
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Renaud F5ZR
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#143505
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Re: Testing Scope Probes
Thanks for that document. Always good to go back to the fundamentals that we know... or knew!
Renaud
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Renaud F5ZR
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#143504
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
Barry, it sounds like Q109 is leaky to cause the collector voltage to
slowly drop from +65 to almost zero. If something was causing Q109 to be
turned on, the neon should illuminate, because Q109 would
By
Jeremy Nichols
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#143503
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
I'll test again tomorrow and see what I can find out.
Thanks,
Barry - N4BUQ
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n4buq
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#143502
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
A very slow sweep speed (several seconds to sweep across the CRT) will give
your DVM time to display the changing voltages at Q109.
Jeremy
[email protected]> wrote:
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Jeremy Nichols
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#143501
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Re: 5086-7337 *Yig Oscillator issue*
Refreshing 4-15-2024:
still looking for a medium size knob for my 83592A rf plugin rpg :)
those whom wants sell one to me, please PM
Thanks!
By
RubenRubio
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#143500
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
I need to double-check but I don't think that's exactly how mine is working (or, more properly, _not_ working).
In SINGLE mode and using an external trigger and the LED circuit, pressing RESET
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n4buq
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#143499
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
Barry, using either a very slow sweep speed (so there¡¯s time to watch the
voltages change) or Single Sweep mode.
Q109
Collector +65V before sweep begins, changes to -9V during sweep, then
returns
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Jeremy Nichols
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#143498
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
That's the action I see when using the LED circuit. Yes, V105 illuminates as long as the RESET switch is pressed. I don't have it in front of me, but I'm pretty sure mine is an 0803 prefix as well.
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n4buq
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#143497
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
Jeremy,
Neither NORMAL or SINGLE will cause the lamp to light but the LED lights properly in either mode.
The voltage at Q109's collector is what's puzzling me. When I first turn it on, the
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n4buq
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#143496
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
My 1421A (serial 0803A03889), when I go to Single Sweep and press Reset
switch S105, the Reset neon DS101 blinks and neon V105 illuminates as long
as the switch is
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Jeremy Nichols
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#143495
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
Barry, what happens when you go to Single Sweep and press Reset switch
S105?
My schematic (and yours) shows the Collector of Q109 at +48V but your
measurement shows
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Jeremy Nichols
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#143494
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
IIRC, when I had the front panel off for cleaning, I inspected those and I _think_ they were very close. Although I don't know why, they used 1% resistors there. Of course, that doesn't prevent them
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n4buq
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#143493
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
If you can lift Q109C then you could at least measure the sum of those two resistors.? But it would be nice to be able to measure the junction of them.
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Peter Gottlieb
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#143492
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
Argh!! I meant grounding Q109's collector (although grounding the base through a resistor has also shown the bulb will light as well). I think I may need to stop typing today...
Barry - N4BUQ
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n4buq
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#143491
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Re: More Investigation of the Malfunctioning Time Base RESET Lamp in my HP-1421A.
BTW, when I placed the 1K across R137, that gave it enough of a path to ground through R139 as well as to -12.6V through R138 to make it light up so I presume grounding Q109's base will cause it to
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n4buq
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#143490
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Re: Testing Scope Probes
Here's how I have done it for about 30 years. I have drill bits the size that work for my probes, I wind the wire around the bit to get a perfect fit every time.
Sorry about the fuzzy picture.
Mikek
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Mikek
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#143489
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