tv transmitter circuit


Posted on Feb 5, 2014

The TV transmitter circuit given here uses UK standard 1 FM modulation for sound and PAL for video modulation. The audio signal to be modulated is pre-amplified using the transistor Q1 and associated components. The transistor Q2 has two jobs: production of carrier frequency and modulation. The pre-amplified audio signal is fed to the base of tran


tv transmitter circuit
Click here to download the full size of the above Circuit.

sistor Q2 for modulation. Capacitor C5 and inductor L1 forms the tank circuit which is responsible for producing the 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. This TV transmitter circuit can be operated from 12V DC. Either a 12V DC power supply or a battery can be used for the purpose, using a battery will surely reduce noise and improve the performance. If you are going with a DC power supply, then it must be well regulated and free of noise.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

8 way electronic selector / switch
8-Amp regulated power supply
Current-Loop Scr Control
Metal Locator Circuit
Schematic Diagram 100W 2x LM3886 Audio Power Amplifier
VGA to BNC Adapter Converter circuit
TDA1083 Am radio receiver circuit diagram electronic project
Ultra Low Drop Linear Voltage Regulator
10 Mhz QRSS Beacon
LOW DROPOUT THREE TERMINAL REGULATORS
Anti-saturation function delete circuit schematics
Sound delay lamp circuit diagram



Top