Transformer Coupled AC Switch (CB25075E)

This triac circuit was found in the October 1987 Radio Electronics magazine. The triac is load-dependent and must be mounted on a heat sink.

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Long Life LED Flasher (CB12433E)
This multivibrator that drives an LED has ultra-low consumption, working with voltages from 1.5 V....
Shock Generator (CB26139E)
This electronic defense was found in the 1990 special issue of Radio Electronics Experimenter...
RPM Counter (CB17100E)
This 4-digit counter was found in a 1997 documentation. It uses CMOS integrated circuits and can...