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| Skema Rangkaian Pemancar TV Sederhana |
carrier frequency. The video signal is fed to the emitter of transistor Q2 via POT R7 for modulation. The modulated composite signal (audio+video) is transmitted by the antenna A1.
Inductor L1 can be made by making 4 turns of 24SWG enameled copper wire on a 6mm dia: plastic former. T1 can be a radio frequency transformer with built in capacitor. (Can be found on old transistor radio boards). Antenna A1 can be a 1M long copper wire. (Experiment with the length to get optimum performance). This transmitter is working in VHF band somewhat between 50 � 210MHz. This transmitter is compatible only with PAL B and PAL G systems.
List Componet:
R1 = 10KOhm R2 = 47KOhm R3 = 15KOhm R4 = 8.2KOhm R5 = 47KOhmR6 = 47KOhm R7 = 1Kohm resistor variable R8 = 75Ohm C1 = 10uF/25Volt capacitor electrolik C2 = 0.001uf/10nF capacitor ceramic C3 = 100nF C4 = 10nf C5 = 47pF (variable capacitor) C6 = 10nF C7 = 10pF C8 = 27pF c9 = 100nF C10 = 470uF c11 = 10nF C12 = 220uF/25Volt Q1 = BC547 NPN transistor Q2 = BC547 NPN transistor
T1 = T1 can be a radio frequency transformer with built in capacitor. (Can be found on old transistor radio boards).
L1 = 4 turns of 24SWG enameled copper wire on a 6mm dia: plastic former.
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