Motion Monitor (CB8275E)

Suggested by General Electric in a 1970 document, this circuit uses a LASCR, or SCR fired by light. This component is uncommon today.

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Unijunction Metronome (CB12281E)
This circuit is from a 1991 publication, but it can be assembled with more modern components. We...
Precision Current Source (CB14078E)
This circuit provides a current given by the components calculated according to the formula next...
Audio Booster (CB23540E)
Published in Radio Electronics in October 1963, this circuit increases the audio output of a small...