The speaker’s diaphragm resets the cone, completing the circuit and repeating ... the definition of an audio oscillator somewhat, but you’ve got to admit it’s simple. Can you get it even ...

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 ...

Injection locking [1] can not only improve oscillator frequency stability and phase noise, but act as a selective frequency divider as well [2][3]. You can find sample setups of a simple ...