This circuit was originally intended to operate with a solar source for experiments. Transistors are general purpose, and the output current is relatively low.
This circuit without any capacitor operates based in the time the transistor need to turn on. The...
This circuit can be powered from 4 to 12 V sources. Pin 6 is the positive supply. See more about...
Indicated for vinyl media recovery, this circuit is from the 80's, having been found in an...