This circuit was found in Motorola's 1968 documentation. It can be built on current equivalent components. The bridge diodes and the SCR must be in accordance with the current of the controlled motor.
This circuit makes use of the LM11, 112 or 113 operatives and was found in a 1980s documentation. The...
This excellent quality transistor amplifier using Darlington transistors was found in a 1980s...
This converter was found in the June 1991 issue of Radio Electronics magazine. The circuit uses...