Found in a RE Experimenter Handbook from the 90s, this circuit is intended for the use of LEDs in a flashing system for Christmas trees. The circuit can be expanded
This circuit with automatic gain control was found in the July 1988 issue of Radio Electronics magazine....
This circuit uses only two general purpose transistors and can be powered by the circuit under...
This circuit, found in a publication of the year 1968, uses a transformer to drive two power...