This circuit was found on an 80's Ham Radio. The transistor admits equivalent. The circuit can generate 20 to 100 MHz signals operating at the fifth harmonic of the crystal.
The circuit is suitable for calls in a residence and was published in the Radio Electronics...
The input impedance of this circuit is about 700 k ohm and the output impedance is about 1 k ohm....
With the values of the components indicated, the circuit generates a 1 kHz signal. The power...