The coils of this circuit will determine the transmission frequency of this device. The circuit is from the 1960 Mullard transistor reference manual and makes use of germanium transistors.
Here we show an oscillator that uses an LC network. The upper limit depends on the power-supply...
This circuit from a Popular Electronics from the 90s allows you to use an old PC as a digital...
of the National Semiconductor of 1994. The same technique can be used with other operators and the...