This circuit is from a 1967 publication and applies to incandescent lamps up to 600 W. Triacs must be fitted with heat sinks.
Found in a 90s Popular Electronics, this circuit excites a 40 kHz ultrasonic transducer. The...
The purpose of this circuit is to cut the peaks of a sinusoidal signal so that it is close to a...
We found this touch switch in a Popular Electronics from the 80's. The circuit can also be...