HP 8904A Repairs
I got a supposed-to-be-working HP 8904A Synthesized AF generator which passed self tests and had no obvious problems, so I took the time neccesary to carefully clean it before doing further tests. After hooking it to the scope, surprise… Sample & Hold Amplifier Lower half of the output waveform was not as wide as the […]
TEK 5000 modules in TM5000 frame
After getting a cheap PS5010 in good shape from eBay, I needed to make it work on my TM500 mainframe. Since TM500 modules can be used on TM5000 mainframes, I thought the reverse should be also possible. I found some references on the web and newsgroups, but no details on how to do it. Here […]