This variable voltage regulator circuit has a power stage capable of supplying currents up to 1 A. The power transistor must be equipped with a heat sink.
We can control the frequency of an oscillator from digital circuits or from the output of a...
We recommend adding a 470-ohm resistor in series with the potentiometer in this dimmer circuit...
We found this circuit for old tape recorders in the December 1972 Radio Electronics magazine. The...