This circuit was found in a 1965’s General Electric documentation. It is intended for low voltage brush motors. The SCR must be according to the engine controlled.
This circuit from the 80's can be easily implemented but needs some changes to avoid problems with...
This circuit was found in the Italian magazine Radio Elettronica from September 1977. It consists of a...
This conventional 4 channel circuit with the 4017 and 555 was found in the November 1991 Radio...