Amplifier Circuits

This PA amplifier circuit is like a super powered bullhorn for your voice! It takes your voice from a microphone and makes it much louder so a whole crowd of people can hear you clearly. This is perfect for big places like schools, offices, stadiums or even parties where you need everyone to hear the […]

This FET preamp circuit is like a supercharger for weak sounds. It uses a special transistor FET to make quiet sounds much louder. This particular circuit is really good at its job because it uses two types of transistors together N channel FET and PNP bipolar to keep the sound clear and strong. This way, […]

A car antenna amplifier is a small box that helps your car radio get better reception. Radio signals are like whispers sometimes they are too weak for the radio to hear. The amplifier makes these whispers louder so the radio can understand them clearly. This is especially helpful in areas where radio stations are far […]

Do you experience weak radio reception on your cable connection? A device called a cable booster, or cable radio amplifier can help. This electronic circuit strengthens the signals traveling through your cable wires. Cable companies offer many channels but sometimes the signal gets weaker as it travels long distances or encounters interference. This can make […]

This article shows you how to build a 35 watt amplifier circuit that is extra powerful. It uses a special chip called a TDA2030 in a unique way to basically double the amps output. This makes the speaker sound much louder. Building circuits with high voltage can be dangerous. do this with adult supervision and […]