500 Meters wireless RF Transmitter..make at home..._Et Discover

4.7k resistor 10 k resistor 470 ohm resistor 750 k resistor p channel mosfetht 12d and ht12 e ic leds vero board swtchs 433mhz receiver link https://www.ebay.in/itm/182987891907?... ht12d and ht12e ic link https://www.ebay.in/itm/132242385744?...