This circuit was found in an old American documentation. Its purpose is a proportional scanning signal for the oscilloscope of the time, which used cathode ray tubes.
Published in Radio Electronics in October 1963, this circuit increases the audio output of a small...
This simple system for opening garage doors by the headlight was found in a 1975 documentation. The SCR can...
This circuit in the National Semiconductor Fast IC Power Transistor manual uses a special power...