Plasma Lamp (CB26130E)

This very high voltage circuit was found in the 1990 special issue of Radio Electronics Experimenter magazine. The circuit consists of a Tesla coil.

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Long delay using PUT (CB5151E)
This circuit was found in an American 1980s documentation. PUTs are rare today. Capacitors C1 and C2 are...
Composite Video RGB adapter (CB16725E)
This simple circuit converts RGB signals into composite video and can be used as a shield in...
Voice Activated Switch (CB5982E)
This 80's documentation circuit includes an amplifier of the era. Used integrated circuits are...