Power! In the realm of the radio control hobby, there is an unfulfilled dream, to make a powerful, inexpensive and simple servo amplifier. We want to make big projects, like an r/c mower, or really big off road robot. There are electric motors with gearboxes out there, like windshield wiper motors, but how can we use them to steer our project? There are electronic kits you can buy, but in my opinion, they are too expensive. In this house, we build what we want if possible. I'm not building a specific vehicle, just demonstrating how the electronic components go together so you can use this concept on your high power servo application.
This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/super-servo-with-wiper-motor-esc-v-tail-mixer-and-servo-tester-no-soldering