This circuit appeared in the June 1990 issue of Radio Electronics magazine. Integrated circuits must be equipped with heatsinks. Current and voltage depend on the ICs used.
November 2016 - Already available from Mouser Electronics on Texas Instruments' new DS280BR820...
This circuit found in a 1988 documentation consists of a timer or sequential timer controller. The...
This astable multivibrator has an emitter coupling between the transistors. The circuit is from...