Amazon.com: 12v/24v Dc Motor Rheostat Marine, Universal Heater Fan Speed Controller, Adjustable Rheostat, Electronic Stepless Speed Controller for Adjusting Speed of Automobile Fan Heater Defroster Fans : Electronics
Chevy Parts » Heater Switch, 12v Rotary Rheostat
PWM Dimmer - 12 VDC - High Power 7A - Remote Rheostat | PilotLights.net
Panel Light Dimming Rheostat | Aircraft Spruce
Old electronic parts and components.
Rheostat - 12V
Motor Governor 12 Volt Rheostat 12V Fan Controller Universal DC 12V/24V Motor 644816069686 | eBay