I just built a basic 1.5V-90V battery eliminator that will power most farm radios from the late '30's on. I need the socket that mates with the plug below. This is the type plug I run into on 98% of these types of radios. If anyone has a few I could buy or knows a source for them, please let me know. If this does not work out, I'll probably convert all my radios to an octal plug. Thanks...

Antique Radio Supply ? Fair Radio Sales- They have a surprising amount of oddball junque.

Antique Radio Supply does indeed have 'em. Radio Daze does, too.