This circuit is like a megaphone for tiny sounds. It uses just two transistors like tiny electronic switches and a 1.5V battery to boost a faint signal making it much louder. This is a basic way to build a mini amplifier for simple projects, like listening to music a little bit better. Circuit Working: Parts […]
Amplifier Circuits
Simple 1.5V Audio Amplifier Circuit
A Simple 1.5V Audio Amplifier Circuit is small circuit it makes sound signal more strong using only 1.5V battery. This type of circuit is low power amplifier which is good for things that uses battery or when big power is not there or not needed. Circuit Working: Parts List: Type Value Quantity Resistors (All resistors […]
Simple LM317 Audio Amplifier Circuit
This Simple LM317 Audio Amplifier Circuit is a kind of like small trick for make speaker sound louder. LM317 chip usually is used to control voltage but here it works like small music booster amp. Not very strong amp but still help give little more sound from the music source. It can work, yes but […]
Simple Public Address Amplifier Circuit
This Simple Public Address Amplifier Circuit it works like a very strong loudspeaker for our voice! When we speak on microphone then it makes our voice go very loud because of that many people can hear us good. Good for big place like school, office, stadium or parties where we want all people to hear […]
Simple FET Preamplifier Circuit
This FET preamp circuit works like super booster for small sound. It uses special transistor, FET to make quiet sound go more loud. This circuit is very good because it uses two kind of transistors N channel FET and PNP bipolar, together they make sound strong and not bad. So even very tiny sound we […]
Simple IC TDA2822 Stereo Audio Amplifier Circuit
This small chip with stereo amplifier makes weak music sound go louder which is strong enough for speaker or headphone. Despite using very little energy it still provides 250 milliwatts each side with good sound for small things like walkman, hearing aid or little stereo. So next time anyone hears music should say thanks to […]