This is a typical circuit for an old microwave oven. We took it from an August 1973 Radio Electronics magazine, from an article that taught how to make repairs.
This small FM transmitter for clandestine listening has a good range and should be powered by a 9...
This circuit has a high input impedance and provides a good signal at its output. The power must...
This traditional metronome configuration uses unusual transistors in the original version, but it...