This circuit of 1965 documentation makes use of a tunnel diode to retard a pulse without distortion. The components are from the era.
Found in the 1991 Electronics Experimenter Handbook magazine, this circuit has good power and is...
This circuit changes the actuation curve of a 47k or 50k linear potentiometer so that it becomes...
This circuit was found in a 1977 Radio Shack documentation. Its purpose is to generate 1 Hz...