Quote Originally Posted by K7SGJ View Post
Just out of curiosity, where would you plan to use this? Are you doing some R&D, or do you see an application in your repair endeavors, beyond fixing other Tek modules?
I'm going to use it (actually, 'them') as a variable level driver in R&D work.

You see, I made a guy an offer he couldn't refuse - - and ended up with several mainframes full of those, the PI-702 Programmable Bias Supply and a PI-451A MOS/CCD driver.

All of them got checked out and calibrated...I'll keep three or four and sell the rest. Likewise with the bias supplies.

I still do a bit of CMOS/TTL engineering work and find myself needing such a beast from time to time. Tek made several pulse generators - PG501/502/503/505/507/508/5110 - and as far as I know, none will allow dynamic level conversion. The PG5110 might, but I'm not paying $1300 for one to find out. Similarly, none allow post-conversion shaping of an outputted ASCII or Baudot data stream.

There are other uses for this thing but I can see it being very handy for working with logic circuitry. Unfortunately, Tek never did make a lot of that type of equipment in the TM5xx/5xxx format. A logic analyzer/word recognizer (which I have), a digital sweep generator (ditto) and a signature analyzer (which I'm looking for) were about it. They also offer a "Setup-Hold Time Calibration Plugin" which I need to get hold of...but not for the solid-gold prices they're currently fetching. Heck, I could design and build one from scratch if I really had to have that function in the lab.