This 5-band function generator circuit was found in the April 1994 Electronics Now magazine. The circuit has three possible waveforms and employs additional operationals.
Found in 1960's Radio Electronics, this circuit provides an audio tone that depends on the logic...
This receiver was found in the Radio Electronics magazine of March 1953. It tunes to the medium wave...
Mouser Electronics offers a vibration sensor which is considered the smallest in its class. This...