Strong amplifier chips like the LM384 are frequently found in basic electronics. The volume increase (gain) is regulated at 34 decibels (dB) inside the chip to keep costs down. Because microphones may readily attach to its ground, this chip is unique. The chip automatically lowers its power output when it becomes too hot. In addition, […]
Amplifier Circuits
Simple MIC Amplifier Circuit using IC LM358
Microphones are able to detect sound, although their signal is quite faint. A circuit known as a microphone amplifier strengthens the microphones meager signal. Because it is inexpensive, simple to use, and capable of handling two distinct microphone signals, the LM358 chip is a common option for this. Generally speaking, audio amplifiers are devices that […]
Simple Hearing Aid Circuit using 1.5V Battery
A simple hearing aid circuit is a low power amplifier designed to boost weak sound signals for someone with hearing loss. This compact amplifier circuit can pick up quiet sound and make them audible through a small earphone. It is powered by a single 1.5V battery. Circuit Working: Parts List: Category Component Quantity Details Resistors […]
Simple Microphone Preamplifier Circuit using Two Transistors
Just imagine your voice is like a tiny whisper when it enters a microphone. This microphone preamp circuit made with just two transistors, is like a small megaphone. It boosts that whisper into a much stronger signal before it goes to the main amplifier making your voice loud and clear. Circuit Working: Parts List: Component […]
How to Convert a Speaker into a MIC Circuit
Instead of the speakers coil, this mic circuit uses the speaker itself to pick up sound waves. These sounds turn into a very faint electrical signal. Then, a special circuit with transistors boosts this weak signal to a stronger one we can use. This microphone will not be the best, but it is a fun […]
How to Make a Simple Op-Amp Circuit
Presume you have two whispers, one a little louder than the other. An op amp is like a super listener that can focus on the difference between those whispers. It ignores the quiet background noise electrical noise and boosts just the part you want to hear the voltage difference. Because it is so precise and […]