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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Turntable Circuit (CB24357E)
This is the circuit of a turntable from the 1970s. We found it in a repair article in the December...
24 Hour Clock (CB6462E)
This circuit divides the grid 60 Hz frequency to obtain 20 Hz to drive mechanical watches used at...
Audio Amplifier CA3080 (CB20022E)
This small audio amplifier uses an uncommon integrated circuit today. The circuit is from a...