Testing my built from junk speed controller. That LM338 voltage regulator runs very hot though as it is dissipating too much power, I will try to find a battery closer to the 8 volts or so I actually need rather than the 13 volt one I have at the moment. I guess I could water cool it! But it proves it all works!
From left to right: Direction change micro switch-Servo-Speed potentiometer- Push to break power micro switch -direction change relay.
That hand drill bevel gear drive is a little noisy but that's all part of my boat's old school-low tech charm I guess!
Just added this video!
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