Sequential Flasher (CB7584E)

This circuit was found in a RE Experimenter Handbook from the 90's. The components are of the time, rare nowadays, except the 555 and 4017.

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Comparator with hysteresis (CB5089E)
This is one of the many hysteresis comparator circuits the reader may find in this section and on this...
Burst Square Signal Generator 555 (CB15436E)
The circuit shown in the figure generates a square signal (50% active cycle) when the pressure switch...
Audio Voltmeter (CB25356E)
The purpose of this circuit is to measure the intensity of audio signals. We found it in the...