This 10W commercial amplifier circuit was found in the September 1958 Radio Electronics magazine. Its power is 10W with excellent sound quality.
This circuit has an LED indication of the timing progress, having been found in an old...
This circuit is from a Radio Electronics magazine from August 1974. It used one of the first...
This charger is powered by the car's 12 V socket, the number of diodes being calculated according to...