This circuit can generate signals from 100 kHz to 1 MHz depending on the L1 coil. For the medium wave range it should have 80 to 100 turns of wire 28 or 30 in a ferrite rod with central socket. For lower frequencies, increase the number of turns. The circuit works as a MW transmitter by connecting the manipulator at the indicated point. The range as a transmitter can be increased by connecting an antenna to the collector of the transistor. CV is a variable capacitor obtained from an unused MW transistor radio.
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