This simple injector circuit can actually be powered by voltages from 3 to 9 V. The frequency is given by C1 which can be between 4.7 and 10 nF. The CMOS can also be 4011.
The microphone of this short-range MW transmitter should be low impedance magnetic (a small...
This basic amplifier using complementary transistor in the output sources about 0.5 W of good...
This circuit was found in a 1978 British magazine, but it can still be mounted by simply replacing the...