[R-390] Big (BIG) Knob wanted

[Jerry Kincade]

Alright, alright, wipe the grin off and read this. I need a large (LARGE)
knob for the volume control on the homebrew AM transmitter I'm working on.
It's for a brute force 240V variac with a 3/4" shaft. I've seen them around
surplus houses (usually attached to a giant rheostat or some such) but never
figured to need one so never picked one up, now I'm sorry I didn't. One of
the ones that resembles a small fat steering wheel, sorta like a giant SX-28
knob, would be ideal, maybe something in the 4"-5" diameter range. Any of
you packrats got one you'll turn loose? I could put something more modern on
it, but this thing just cries out for the real thing, and I'm asking here
first because God knows us 390 guys never throw anything away.
73 Jerry W5KP