Found in 1965 General Electric documentation this circuit applies to a LASCR used as an optical sensor. This component is little used today.
We found this circuit in an American documentation from the 80s. The integrated circuits are...
This speed control for small DC motors can operate from 6 to 12 V sources. The motors can drain...
July 2016 - It can be obtained from Mouser Electronics new trinkets Adafruit. These trinkets are...