This circuit uses a wire potentiometer, but the current is much more intense in the control thanks to the 2N3055 which must be mounted on a heat sink.
This circuit was found in the February 1980 issue of Radio Electronics magazine. The digital...
We found this circuit in a Motorola manual. The circuit has the capacitor charging at 15 to 30 V,...
This circuit has a high input impedance and low output impedance, serving as an adapter for...