Negative Feedback Stage (CB6131E)

This circuit is from a 1967 US publication. The configuration can serve as a basis for designs with modern components.

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TTL Oscillator 7408 (CB25014E)
This adjustable frequency circuit was found in December 1986, Radio Electronics magazine. The base...
Power Supply for the Maker (CB16388E)
The source of the figure was found in a 1981 magazine and is recommended for the experimenter's bench. The...
One-transistor oscillator (CB22064E)
Capacitors C2, C3 and C4 determine the frequency of this simple oscillator. Transistor can be...