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.
We found this circuit in a 1967 Electronic Design. The circuit used a MOSFET of the time, which is...
This circuit uses an audio output transformer found in old transistor radios. Power output is...
This sensor circuit for a small robot was found in a Popular Electronics from the 90s. The circuit...