Values on old test equipment?

When I'm in the market for some piece of test equipment, I usually watch for it to appear on ebay. I'm patient, so sometimes I watch for a long time -- in one case, for over 5 years before I found the deal I wanted on an older piece of HP gear (I got a steal too!). Remember that something is worth what a seller is willing to take and, at the same time, what a buyer is willing to pay. Talk is cheap; the only real data are those from completed sales. Unfortunately, 30+ year old test gear is somewhat rare, so you may not get a reasonable sample to help you make estimates unless you're willing to wait.

 

daddles is right. Sounds like you want to try to sell some gear. Check prices on ebay to see what each piece is worth. Bear in mind replacement parts are pretty expensive.
Functioning instruments will command much higher prices than non-functioning ones.
(If you can fix them before trying to sell them).