This control for 1/15 HP motors with 5,000 rpm for 115 V power grid was suggested by a Motorola circuit manual from 1968. The SCR supports more modern equivalents.
This circuit emits a warning sound when night falls. The circuit is from a Hands On Electronics from...
This circuit is from an April 2000 Poptronics. The magazine no longer exists, but the circuit can...
This separator filter is from an old publication. The capacitor can have 10 to 47 uF of the...