Picked up some antique and vintage test equipment

[Dangler]

The Supreme 585 was something the repairman would take to a customers house to work on a large radio. It is a tube tester, capacitor tester, volt meter, ohm meter, amp meter and a decibel meter and a couple of other functions I haven't figured out yet. There is an 01A tube that I haven't figured out what it's for either. It only lists about 60 tube types for testing.

There is a large cable with adapters to plug into tube sockets on the radio chassis for analyzing different circuits.

It has a lid with a handle for carrying around to different jobs. That's pretty much a workout in itself.

I been going over it checking for anything that looks bad, but found nothing. There are a couple of capacitors that I'm going to replace and then try and test a tube or two.

The face is etched copper that is really tarnished. If anybody has any tips or precautions about how to clean it, let me know.