Crystal FM Transmitter

 Easy Crystal Locked FM Transmitter With Single 9018 Transistor

List of components : (1) s9018 transistor (2) 22 ~ 27 MHz crystal (I use 24 MHz 24 x 4 = 96MHz) (not 'crystal oscillator' , corrected by Nick B ) (3) 47pF capacitor x2 (4) 102 capacitor (1000pF) (5) 47k resistor (6) 100 ohm resistor (7) 30k resistor (8) 10k resistor (9) 1~5 uH inductor (10) 1n4727 diode (or better variable capacitance diode) (11) about 12 cm wire , 5mm drill (12) headphone jack(Optional)

http://www.ke3ij.com/am-univ.htm

https://sr.wikipedia.org/wiki/Fazno_zatvorena_petlja

https://node-os.com/