I own a 1984, Modern Maid Downdraft Cooktop, model #KET-570. The switch
for the exhaust fan is bad. It is a rotary switch, meaning it has a
knob that turns. The switch is obsolete but it was produced by Maytag
and GE as well as Modern Maid. I am hopeing someone has one that they
can sell me. Here are the specs:

Modern Maid part #74-03-104
Maytag Part #0042048
GE part #GEHWB24X5191
The printing on the back says the swith is rated at 10 amps and 120
volts. It also says 1/2 hp.

I hope someone out there has one they can part with. Thanks...