Bill,

Do you have a trolling motor stall current guide?

I found a couple of cheap pwm circuits on ebay. Cheaper to buy one than build now days.

I got a 37 lb Motorguide on my Jon boat with 5 speeds. I can hardly turn the know anymore. Old age sucks.

I could stall the motor and find out but I do not have a current clamp.

These speed controllers will handle about any tm.

The show 30/60/100 amp controllers. 12 to 40 volts. Hard to beat the prices. Made in China......American technology.

These would be easy to implement as a speed control.

Thanks,

Tom

dc motor speed controller, Business Industrial, Electronics items on eBay.com