The component used in this circuit is uncommon today, as the circuit was obtained from Motorola's Linear Databook of 1990. The circuit consists of a 5 V x 500 mA switched regulator.
This circuit was found in a Poptronics of the 90's. It can be powered by voltages between 6 and 15...
This triac control was found in the October 1987 Radio Electronics magazine. The triac must be...
This circuit can be adapted to be used in a follow the line robot. It was found in the May 1962...