This powerful motor control was found in a Philips publication from 1970. The components are from that time and the circuit was designed for the 220/240 V power grid.
This circuit uses a capacitor to store energy. The capacitor is charged by closing S1 by a moment. Them,...
This circuit was found in a Poptronics of the 90's. The FET is double-gate, and the frequency...
The output power of this amplifier depends on the supply voltage that can be between 3 and 16 V....