This power supply was found in the same 1990 special issue of Radio Electronics Experimenter magazine that describes an amplifier of up to 100 W per channel with the LM12.
This conventional slow-moving circuit uses incandescent light bulbs, but can be changed to use...
This TTL dice is from an old publication from 1978, but it can still be assembled, as the...
The purpose of this circuit is to control magnetic door locks activated by the power grid. The...