modified 5 years ago

Schmitt Trigger Oscillator

01:26:39

Works, built with 2N2222 and 2N2907 transistors.  Wide bandwidth, stable at 5Hz through to 20kHz.  Constant peak output so it couples easily to any amplifier. 

Self bias resistor on the first transistor keeps it running. 

published 11 years ago

thebugger

11 years ago

Interesting. It creates both square and triangle waves. I bet with some modifications it would produce sine and sawtooth too.

rbrtkurtz

11 years ago

Might I suggest saving the circuit while the switch is open? It doesn't seem to like starting off closed. Badass little circuit, though. I like it.

faceblast

11 years ago

fixed switch. How can I make it output Sine without wrecking the wide bandwidth and constant peak

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