HaHa! The worst thing is I can't figure out what to call it, to find a reference online. The shaft of the pot only turns 180 degrees. Inside there's a transformer (EWC31004GO5), the base of the cylindrical fuse holder, the rear of the pot is a rheostat with a black resistor inline to the transformer (no timer-but great idea). I had an old JA Michel Transcriptor
turntable whose on off switch used a magnet to open and close the circuit.Wondering if this might be of that era (early 60's)
turntable whose on off switch used a magnet to open and close the circuit.Wondering if this might be of that era (early 60's)

