This circuit produces sounds of 6 different notes depending on the keys activated. The circuit is from a Radio Electronics from May 1965. The transistor must be equipped with a heat radiator.
This circuit uses an unusual Motorola integrated. The circuit is from Motorola's 1990 Linear...
Using a motorcycle or car ignition coil, this simple circuit can generate a few tens of thousands of...
This circuit drives symmetrical loads through a single transistor. The circuit is from a Radio...