This circuit was found in a 1980s documentation for amateur radio. The circuit is for 9 MHz signals and values in parentheses for FI of 455 kHz. The circuit can be adapted to other frequencies.
Here we show an oscillator that uses an LC network. The upper limit depends on the power-supply...
This oscillator can generate 2 to 10 MHz signals and was found in an American 1980s documentation. The...
The idea of this simple circuit is to use a tape recorder to key a transmitter in code emission....