This circuit was found in a Radio Electronics magazine from November 1972. The circuit is based on an integrated circuit of the time and the current is 1 A and is adjusted with a potentiometer.
The A3906 integrated circuit from Allegro MicroSystems (www.allegro.com) consists of a single-step motor...
We found this circuit in a 1980s publication on telephony. The circuit uses an integrated...
This circuit can use a pendulum sensor. We found this configuration in a 1994 publication. The...