No self control - 20's homebrew

[Reece]

I had some of those phone plugs years ago and just looked in three jars full of phone plugs but have none like that any more. I had bought some in the fifties from Allied. They have a larger plastic barrel than the usual plugs used today: unscrew the barrel and there are two screw terminals inside where you can slide the phone tip into a groove and then tighten the screws. I used these for 2000 ohm phones for years. Someone here may one in their stash they could send you.

At any rate, I'll bet the modern speaker sounds better than the old magnetic drive one.