Posted by Circuits Arena on Saturday, 20 December 2014
Video Signal gain Amplifier is the artlcle explaining This circuit made by using two transistors and this is a very simple cable TV amplifier using two transistors. Fig. Video Signal Am...
This circuit made by using two transistors and this is a very simple cable TV amplifier using two transistors.
Fig. Video Signal Amplifier.
- This amplifier circuit is most suitable for cable TV systems using 75 Ohm coaxial cables and works fine up to 150MHz.
- Transistor T1 performs the job of amplification. Up to 20dB gain can be
expected from the circuit.T2 is wired as an emitter follower to increase
current gain.
- The circuit can be assembled on a Vero board and use 12V DC for powering the circuit.
- Any medium power NPN RF transistors can be used in place of T1 and T2.
- This is just an elementary circuit. Do not compare it with high quality Cable TV amplifiers available in the market.
