Low voltage dimmer (CB7855E)

This circuit was found in a 90s 303 Circuits. The circuit operates in a 200 Hz switching mode and the output current reaches 5 A.

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Symmetrical 2.5 A Power Source (CB17020E)
We found this circuit in a 1997 documentation. Power transistors must have good heat sinks. The...
Color Bar Generator (CB4649E)
This old circuit is from the era of analog televisions, serving for technicians to make...
Code Practice Unijunction Oscillator (CB1430E )
e find this circuit in documentation for radio amateurs of 1974. The unijunction transistor can be...