Triggered Oscillator (CB21252E)

This trip switch circuit was found in a Popular Electronics from the 90's. The frequency basically depends on C1 and R1.

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Touch bistable 4011 (CB9566E)
This biestable touch circuit was found in American 1980s documentation. The circuit must not be...
Electronic Organ with Trembling (CB16275E)
This simple electronic toy organ produces an interesting sound, which can be used by the most...
Super Thermostat (CB16994E)
This circuit is from an old documentation from 1995, but it can be easily assembled today by the...