40 Watt Audio Amplifier Circuit makes small sound signal big, so sound come out loud from speaker and we can hear music or audio more loud with this. The main component of this easy circuit is the TDA2040 IC and this IC comes in a Pentawatt package and operates as a Class AB audio amplifier.” […]
Amplifier Circuits
Simple 5W Audio Power Amplifier Circuit
In this post, the Simple 5W Audio Power Amplifier Circuit uses the IC LM384, a strong amplifier chip in basic electronics; also the chip provides a fixed voltage gain of 34 dB, which helps keep the circuit cost low. Mic can connect easy to ground that make chip special and if chip get too hot […]
Simple MIC Amplifier Circuit using IC LM358
Microphones detect sound, but they produce a very weak signal; then this Simple MIC Amplifier Circuit using IC LM358 make signal strong. Also, LM358 chip is cheap, easy and can work with two mic signals so people use it a lot. Audio amplifiers take weak sound signals from mic or music player and make them […]
Hearing Aid Circuit using 1.5V Battery
Hearing Aid Circuit using 1.5V Battery is small sound booster, which helps people with hearing loss and to hear better. Furthermore, it picks the weak sound and makes it louder in earphone, also this circuit works with one 1.5V battery. Circuit Working: Parts List: Components Values Quantity Resistors (All resistors are 1/4 watt unless specified) […]
Microphone Preamplifier Circuit using Two Transistors
Imagine our voice is a tiny whisper going into a microphone. This Microphone Preamplifier Circuit using Two Transistors works like a small megaphone; it makes the whisper louder so the main amplifier can clearly boost our voice. Circuit Working: Parts List: Components Values Quantity Resistors (All resistors are 1/4 watt unless specified) 100k 1 120k […]
Simple Speaker Audio Output Transformer Circuit
Imagine our voice is strong but we whisper through a tiny straw to reach our far friend but it wont work. Same is in circuit for Simple Speaker Audio Output Transformer Circuit which works like a megaphone for sound signal. Furthermore, it takes strong signal from amplifier and changes it to fit the speaker so […]