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: 8593E Tracking generator issues
Further along...
Was able to adjust offset and gain of ALC response on 5086-7906 TG per the service manual procedure. Performance is within specification, but there is a big 'hole' in the flatness at the low frequency end that varies with output level. Perhaps this is the nature of the beast, given the absolute accuracy specs that allow for ~3-4 db variation total over the operating range. Wanting to check the spectral purity, but lack a receiver / analyzer in the 100 - 500 MHz range at the moment (VNA in 'Tuned Receiver' mode tried, needs further study). It might be spurious outputs confusing the detector, as has been suggested in these threads, ??#103226???#103124???Or, something else. Have seen some instability and oscillation in the ALC at the low frequency end from cold start. Would very much like to see a schematic of the 5086-7906..! ALC control voltage from the A10 board looks good, see stable ramps in sweep and quiet at zero span. Using 8471A detector and external ALC did not achieve leveled condition, but some response to level adjustment was seen. Have found little information on the external ALC mode for 8593E, other than with some special options it cannot be used..?? Waveforms show open loop output, 0 dBm, and -10 dBm at 0 dB step attenuator. Thoughts..? |
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Re: sick hp 5421A Digital Processor
On 2/20/20 1:23 PM, ChrisBeee via Groups.Io wrote:
Hi Eagle-Eye Dave? ;-) ,=) did not realize that the NIMs were on the picture too. Actually, theyIndeed, I'm sorry to hear they're so hard to find over there. Shipping would not be cheap, but I could part with a NIM bin for a small sum. I'm not really trying to sell them, but I do have more of them than I will ever need, so I'm only looking for a few bucks. The shipping will be the tough part. I don't have any of the HP bins, but Ortecs and a few others. Ping me off-list if you'd like to discuss. -Dave -- Dave McGuire, AK4HZ New Kensington, PA |
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Replacing the fan on an HP11729C
Dan Nessett
I recently needed to change the fan on an HP11729C. Several members of the HP-Agilent-Keysight-equipment list on groups.io greatly assistment me in this, which is in fact a bit of an understatement. Without their help I would not have been able to complete this task. I would like to acknowledge their assistance and thank them for it. They are: Leo Bodnar, Chuck Harris, Orin Eman and John Gord. In the spirit of their unselfish contributions, I thought I would create a detailed set of instructions that document my experience with this retrofit. The original equipment on the HP11729C is a Buehler fan driven by control logic that converts 12V DC to a 3-phase AC driving voltage. The new fan is a 12V DC fan. The one I used was recommended by Leo - , which I purchased from Amazon. In order to remove the fan, several bolt sets must be removed. My 11729C has handles on the side for lifting, which must be removed, as their edges cover the backplate in which the fan is mounted (see handles.jpg, which is attached to this message). There are two of these handles, one on the top, the other on the bottom. Then you must remove 8 mini-bolts, 4 on each side of the chasis (see four_backplate_side_bolts.jpg). Note: two of these bolts are longer than the others. You should mark the holes from which the came so they can be returned to the proper place when reattaching the backplate to the chasis. The final set of bolts are located on the face of the backplage (see backplate_facing_bolts.jpg). These are easily removed, but (see below) are incredibly hard to get back into place. If you try to remove the old fan without removing these bolts, you run the risk of bending the backplate, so unfortunately, their remove is necessary. Once these set of bolts are removed, with a bit of wiggling the old fan can be wedged out of its slot. This is not particularly easy as the old fan sits in a slot on the side of the backplate (see lip_on_backplate_holding_fan.jpg. Note: this lip is shown in the image with the new fan inserted, so it isn't apparent how the old fan inserts into it. However, when you push the backplate out to access the old fan, it is obvious). After removing the bolts holding the old fan and fan guard to the backplate, you can wiggle it in order to wedge it out of the other side of the backplate (see new_fan_insterted_into_backplate.jpg. Note this image shows the new fan in the fan slot with the fan guard and fan bolted to the backplate. However, the arrows show where the fan can be wedged out of its slot.) Once you have removed the old fan, the new fan slips easily into place. Just bolt the fan guard and fan to the backplate using the bolts that held the old fan in place. In order to connect the new fan to its power source, the red and black wires must be routed to a 12V source. This is on the other side of the PC board, so (after twisting the wires) I routed it through a convenient VIA (see site_of_12V_supply_on_back_of_PC_board.jpg). Note that the schematic (see Schematic.jpg) shows the speed control for fan connected to the -15V supply on the 11729C. I orignally did not understand how this was going to provide the necessary 12 volts required by the new fan. However, Chuck Harris pointed out that the PI filter inserted between the -15V supply voltage and the speed control would drop the voltage to around 12V, since it comprises two 19.6 Ohm resistors with a 10 uF cap to ground. In fact when loaded by the new fan, the PI filter drops the voltage to 11.23V. This is sufficient, since the new fan will spin on volages between 6 and 13.8 V. It is important to note that the new fan runs on 12 V, whereas the speed control expects a -12 V input. So, when wiring the new fan to the old power source, you must solder the red wire to ground and the black wire to -12 V (see 12v_supply_to_fan.jpg). Note that the red wire is soldered to the 2 pad and the black wire to the 6 pad, which, if you look at the schematic accomplishes the required switch in polariy. Once the new fan is inserted (and after testing that it works by connecting the power cord and turning on the unit), it is time to reattach the backplate to the chasis. I first rebolted the 8 side bolts, connecting the backplate to the chasis side wall. Then I rebolted the facing bolts through the backplate to the chasis. This is an easy statement to make, but it wasn't easy to accomplish. It took me about 2 1/2 hours to get these two bolts connected. Working on each bolt one at a time, I inserted them with the unit sitting in its side. I then put a piece of electral tape over the bolt hole (see tape_holding_backplate_facing_bolts.jpg) and turned the unit so the bolt face was sitting on the benchtop (see backplate_facing_bolt_on_inside_of_chasis.jpg). This allowed me, using a pair of needle nose pliers, to gently ease the washer and lock washer over the bolt. I then turned the unit on its side again and very gently removed the tape, using my finger to keep the bolt from coming out with the tape. Splitting a wooden tongue depressor lengthwise and adding some blue stickum to its end (see backplate_facing_bolt_nut_on_half_tongue_depressor.jpg) I put the nut on the stickum. Not shown in the image is I then bent the end of the tongue depressor 90 degrees so I could place the nut over the bolt end. Using a screw driver, I turned the bolt wiggling the nut around until it caught on the bolt's threads. I then removed the tongue depressor and using a pair of needle nose pliers, held the nut in place using the screw driver to tighten the nut on the bolt. This may sound straight forward, but it was not. First, getting the washer and lockwasher on the bolt end was not easy. They kept flying all over the place when I tried to manuever them onto the bolt end with the needle nose pliers. Second, when I had them in place and turned the unit back on its side, the washers would invariably fall off, requiring me place it on its back again and reposition the washers. I kept loosing them as they fell into the insides of the unit. Turing the unit this way and that, simultaneously shaking it would usually disloged them and either they would fall out onto the bench or would land somewhere in the chasis that I could access. However, I lost one washer that never did come out of the unit's bowels. Third, when I had successfully got the unit on its side with both washers in place and tried to maneuver the bolt over the bolt end, the stickum would catch the washers and further movement of the tongue depressor would pull them off. I won't go into any more detail, but be forwarned. Getting these bolts back into place is a very frustrating task. Perhaps others have some advice how to do this with more ease. Once the facing bolts were reattached, it only requires attaching the side handles and the repair is complete. Dan |
Tom Phillips
Dave McGuire
