The figure shows a simple crystal oscillator circuit using a tunnel diode. Output power generator - a few tens of microwatts. The mode of operation of tunnel diode is set using tuning resistor R1. The voltage of 1-2 Volts.
Literature:
H.-J. Fischer, W. E. Schlegel. Transistor - Schaltkreis und Technik. - Berlin, 1979.
Publication: N. Bolshakov, rf.atnn.ru