This circuit was found in a 1965 Electronic Design. Transistor Q2 must be load dependent. The circuit can be adjusted for currents from 1 to 10 A. The voltage drop is 3 V and the maximum voltage is 35 V.
Found in the October 1992 Radio Electronics magazine, this oscillator is controlled by switch S1....
The purpose of this circuit is to control magnetic door locks activated by the power grid. The...
The circuit shown has a differential input and employs transistors of an array of matched types. The...