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.
In this simple circuit the transistor can be of any type of general use and the capacitor has...
This simple field strength meter was found in a 1967 documentation. The transistor is germanium, and the...
This circuit appears elsewhere on this site. Although the 8038 is not an easily obtainable...