First score (you always remember your first...).
I'm building out my lab from just a few DMMs in a drawer to something bigger and better.
I really dig solid, old equipment like what I see on this thread. I don't have to explain anything to you people.
I won an HP system power supply on Ebay but the seller said that he couldn't get to his warehouse and refunded me. Argh. That would have been cool, even though the shipping was almost as much as the price of the thing.
I got the following off of Craigslist from a guy that was in the process of getting divorced and about to move:
(4) Pomona alligator-banana leads @ US$3 each, two still unopened(!)
(2) Akro-Mills parts storage thingies @ US$9 each, and
(1) Topward TPS-4000 (Model 4303) DC power supply @ US$40
The TPS-4000 has two CV/CC outputs 0-30V @ 3A and one fixed 5V @ 3A output. I tested it out with a Fluke DMM before I bought it. The voltages for both of the variable channels seem to change appropriately when the knobs are twiddled and the fixed channel puts out 5.0V. The power switch looks like someone hit it with a tack hammer because it's bent and all wobbly, but it's functional.
I found the manual and some (all?) schematics already:
https://www.dudleylab.com/Power%20Supply%20TPS-4000.pdfI plan on verifying that it has the right fuse, cleaning it up, replacing the wonky power switch, making sure the caps aren't bulging, putting on some binding posts that don't look like they came off of an AliExpress breadboard, and verifying that the ground post is actually grounded. I'll perform the calibration procedure (from the user manual) as much as I'm able to, and build a bench and a shelf to hold it.
Edit: I'll figure out the attachments thing. ack.