This bidirectional motor control was found in an 80's Electronic Engineering. The circuit uses a component of the time and is suitable for motors up to 1 A.
Varicap or varactor is the basic component used in this circuit of an American 80's documentation. The...
April 2017 - Boardcom's new Sigma-Delta ACPL-C799 modulator is in stock at Mouser Electronics. The...
This circuit was found in a Radio Electronics issue from May 1989. Please note that it may not...