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Put me on the list to notify as you get to them. I could help if you are interested in help. Cheers! Quoting Dave McGuire <mcguire@...>:

I've had pretty good luck prying open variable resistors, but you have to be very careful about breaking off the tabs. Only bend them out as much as is absolutely necessary, and if possible, try to

Have you done a very thorough inspection of the input connector and checked it for any play (looseness)? If loose then check the cable connection on the inside of the input connector for any hardline

Poor choice of cleaning chemicals often results in a bad day. Cleaning chemicals that were formulated specifically for this application tend to be a lot more expensive than those that were not, but we

I may try prying them open as well so as to be a bit more careful about how I'm cleaning things in there. Thanks, Barry - N4BUQ

I'd considered doing that as well but I've read horror-stories where some "cleaners" have dissolved the carbon track rather unexpectedly. Thanks, Barry - N4BUQ

On that note, I have calibration and verification software for many, many different instruments that I got from a calibration house that shut down. It will be awhile before I will be able to image the

I wondered about doing something similar and have experienced what you're describing as well. Even though they're W-W, I also wondered if a ten-turn pot would work well and may give it a try (outside

Tobias - I'd like to correspond off line about how you did the translation. I'd like to do the same for the 8340 and some other equipment I have. As I said, I have an 9000/300 system and a good hpib

?My 332A's COARSE pot did not respond adequately to cleaning. I replaced it. I do not like concentric controls in this application - it's too easy for FINE motion to nudge COARSE slightly. I drilled a

I would really like to get a copy of both the original version and your reimplementation, if you're willing to share them. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

Excellent, I have a Prologix adapter, use it all the time. I'd welcome a copy of your PY prog. You can privately email me: hp at quackers dot net. Again, thanks.

Would you be willing to share the software (both versions)? I'm building an HP 9000/300 system and a GPIB analyzer as a platform to translate HP verification SW to more modern languages. This would be

Bill, I have the cal. software ( HP BASIC). As you said, it needs a lot of specific HP gear, but I re-wrote it in Python so it can be run on a modern PC with Prologix GPIB USB adaptors. And it is

Yes, the "real" ones for restaurant use are NSF-rated and very, very sturdy. With lots of restaurants unfortunately going tits-up nowadays due to covid19 shutdowns, there will be a flood of commercial

I have had some luck by prying the covers off for cleaning and then crimping the tabs back. Can't be done where the pots are stacked. AB were the best of the bunch are a pain to clean. Ohmite sold

On 4/10/20 1:48 PM, Daniel Sheen wrote: > I have a rather bizarre problem with a 5343A counter. Observed symptoms > are that the high frequency input works reliably up to about 250MHz, > reads garbage

These are also called Metro racks and are used extensively in restaruants. Check your local craigslist and auction sites. The commercial ones can handle 800 lbs per shelf(!) I've found a couple of the

I have a whole bunch of these shelving units in my house, some for books, some used as lab benchtop shelving and some used for random stuff. One can even buy plastic mats of various sizes and colors

Barry, I have one of these instruments, but it is too buried to easily allow inspection to determine what type of pots were used.? If the values are above 1k, they are probably not wire-wound.? If