Automatic night light (CB7193E)

This circuit is from a 1965 General Electric hobby manual. The circuit can be assembled with sensitive reed relays.

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Integrator with JFET (CB6229E)
This circuit was found in an 80s National Semiconductor documentation. The configuration holds...
Flashing Multivibrator (CB16331E)
This project is from a 1982 documentation, based on an astable multivibrator with two transistors. The...
Continuity Tester (CB256E)
Circuits and devices can be tested using the tester. The visual indication of the state of the...