I have a bunch of old electronics parts inherited from my father, who was a Ham and an EE. There are a few old quarter-inch phone plugs, from the 30s or 40s, in

I have a bunch of old electronics parts inherited from my father, who was a Ham and an EE. There are a few old quarter-inch phone plugs, from the 30s or 40s, in the collection, with classic Bakelite casings. They work just fine in modern equipment.