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

Casio cable for PC
ADSL Splitter Adapter
Morse Keyer circuit
AVR LCD Microcontrolled Oscilloscope
Fsk-data-receiver
10 Step Baby Gate Sequencer CD4017
Bots Circuit Designs
RFI-Free Ringer Generator Works Off Single 5-V Supply
ADum3223 issue (H bridge)
WSH412 Hall Effect Sensor IC With Thermal Lock Protection And Auto Restart Function
interfacing lcd atmega32 microcontroller atmel studio
I burned out some resistors on the circuit board of my Roland
dub siren circuit



Top