Suggested by an Electronic Engineering, this circuit uses components of the time. Modern equivalent components can be used according to the motor current.
This amplifier for automotive use was found in the SGS manual of linear integrated circuits of...
This logarithmic operational amplifier was found in the September 1994 issue of Electronics Now...
This charger for a maximum current of 15 A was obtained from an American 80's schematics. The triac must...