But the design goals are pretty clear: build an oscillator with as little distortion as possible across the audio frequency range. The basic circuit is the well-known Wien bridge oscillator where ...

Traditionally, tuning RF oscillator circuits has been a function of an adjustable capacitor. But capacitance is only part of the circuit, with inductance being the other important portion.

The Mostronome is a 1975 electronic metronome that reimagined musical timing with its whistle-like tone. This vintage circuit ...