This light effect circuit was found in the July 1971 Radio Electronics magazine. The circuit is powered by 110 V mains but can be modified depending on the triac and lamp.
Found in a Raytheon circuit manual from the 1960s, this circuit uses the CK722 and a...
With this circuit it is possible to measure RF signals with a common multimeter. Signals up to 200...
This circuit was found in a 1967 US publication. In it we have the implementation of a ring...