I've just uploaded a few "quick and dirty" teardown videos of equipment from a recent hamfest haul.
It's mostly HP gear, including a 3455A voltmeter, and a couple of more obscure items.
These videos are simple: Brief description, Open it up, Poke about, Look for simple problems, and See what happens when power is applied.
Hopefully, some will find them interesting...
HP3455A voltmeter.
Seller said it made a bang and lots of smoke when turned on earlier that day
HP3495A Scanner.
Routes connections via reed relays under HPIB control.
HP37201A HP-IB extender.
Carries HPIB communication over RS232 for long range connections.
Tait T348 15V/15A power supplies.
Made in NZ in 1988.