Found in a Popular Electronics from the 90s, this circuit is intended to measure the harmonic distortion of an audio signal. The circuit can be tuned between 970 and 1030 Hz.
This Colpitts oscillator with JFET has the amplitude of the signals stabilized by a diode. The...
This circuit can be used with the CIR12642E TTL Roulette, or other game circuits that must draw...
This conventional window detector circuit was found in a 1995 documentation. The trigger points, that...