Cable TV channels travel on thin cables. These signals can get weaker as they travel long distances. A cable TV amplifier is like a small radio that makes the signals stronger. This helps ensure clear reception for viewers. Circuit Working: Parts List: Component Quantity Notes Resistors (1/4 watt) 680Ω 1 820Ω 1 75Ω 1 100Ω […]
Amplifier Circuits
Simple 70 Watt Audio Amplifier Circuit
This article explains an amplifier circuit that uses special transistors called MOSFETs to make sounds louder. These transistors are good for amplifiers because they: Let a weak electrical signal coming in control a strong outgoing signal like turning up the volume on a radio. Do not waste much power themselves and; Can handle strong signals […]
Cellphone Triggered Car Amplifier Auto Mute Circuit
This post shows you how to build a circuit that automatically mutes your car stereo when your phone rings. This way, you can answer your call without scrambling to turn down the music. What is a Cellphone Triggered Car Amplifier Auto Mute Circuit: The Cellphone Triggered automobile Amplifier Auto Mute Circuit is an electrical circuit […]
Simple 300 Watt Power Amplifier Circuit using Transistors
Calling all music lovers who want their speakers to sound REALLY loud! This article shows you how to build a super powerful amplifier circuit that can pump out 300 watts of sound with 8 ohm speakers or even more with 4 ohm speakers. Building circuits with high voltage can be dangerous. If possible be under […]
Simple 100 Watt Amplifier Circuit using IC LM12
This article will show how to construct a simple 100 watt amplifier circuit using a IC LM12. No need for complex wiring or multiple components follow a few steps and soon you will be immersed in rich, top notch sound. The 100 watt amplifier circuit boasts a compact and efficient design making it ideal for […]
Simple Contact MIC Circuit
Special microphones called contact mics can pick up weird sounds if you stick them on different things. They can even make sounds themselves if you give them a little electric boost. If you have an acoustic guitar that needs to be louder, you can use a contact mic with a simple circuit to make it […]