Thread: infinite speed control switch

I've wondered about this myself. My guess is that you have a bunch of high wattage resistors in series and you are just simply tapping off a different resistor every time you turn the handle. Unfortunately, the resistor bank is generally enclosed in plastic. Even if putting a high wattage resistor in series with your battery wire was a solution, the question would be what ohm value resistor. I'd be curious to hear others input.