The simplest possible circuit to generate a sound... (beginner)

[Scott Gravenhorst]

I've built (long ago) very simple circuits with things like SCRs and
UJTs.  One cool thing I did was amplify my electric guitar output
and injected that into these oscillators and found that when connected
just right, the oscillator would synch to the guitar signal.  A sort
of stone age guitar synth <g>.

-- Scott Gravenhorst
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