This circuit, with output of 1.5 A, was found in a magazine 73 of the 90s. The integrated circuit is from the time and must be mounted in a heat sink.
This well-known two-transistor oscillator circuit was found in the April 1964 Radio Electronics magazine....
This circuit was found in a 1971s English magazine. We can still assemble it using BC548...
This circuit is suggested by National Semiconductor and is based on a DAC1280A Digital Analog...