The Newly revised and updated SC10A constant speed controller.
With the aid of 6 magnets secured either to the spinner back plate or the output shaft the SC10A can not only allow manual control of the propeller pitch it can also operate automatically and keep the rpm within +_40 rpm of the set point.
A seriously simple unit to operate and with very robust internals, the SC10A ca support almost every light plane electrically adjusted propeller on the market
1 of SC10b controller
6 of rare earth magnets
NOTE: pickup sensor needed to suit the application, inquire for custom designs.