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:: Home » Microphone Preamplifiers

Microphone Preamplifiers

Simple Condenser Mic Preamplifier Circuit

Last Updated on: March 13, 2025 by Apichet Garaipoom
Make Simple condenser MIC preamplifier circuit

This is simple condenser mic preamp circuit using 2N3904, The mic bring to change the sound to electrical signals. it is simple circuit and use 9V battery Read more

Categories Amplifiers, Preamplifiers Tags 2N3904, Condenser microphone, Microphone Preamplifiers 8 Comments

Cheap & Small hearing aids circuit project

Last Updated on: May 13, 2024 by Apichet Garaipoom
Small hearing aids circuit project

Imagine your dad is old. Sure, he hears anything weak sound.

How do you do?

You are an electronics inventor, right?

Yes, you can try to make a tool. To help him back to listen to great music again.

This project is small, use only one 1.5V battery. Using normally components you can buy in stores near you. Read more

Categories Amplifiers Tags Microphone Preamplifiers, Tested 60 Comments

TL084 circuits JFET Input Op-amp datasheet

Last Updated on: March 3, 2025 by Apichet Garaipoom
TL084 circuits JFET input quad op-amp datasheet

TL084: low noise OP-AMP in cheap. Use JFET input. Why popular in audio & a lot of circuits: wide bandwidths and fast slew rates. Example: Read more

Categories Amplifiers, Basic Electronics, Preamplifiers Tags Condenser microphone, Microphone Preamplifiers, op-amp 3 Comments

3 Low noise microphone preamplifier circuit using NE5532 LF356

Last Updated on: July 21, 2020 by Apichet Garaipoom
balance Pre microphone amplifier circuit

This is Low noise microphone preamplifier circuit using IC-NE5532, M5218P. Simple circuits but high quality balance-Unbalance Input for dynamic microphone Read more

Categories Amplifiers Tags Low noise circuit, Microphone Preamplifiers 6 Comments

Transistors Dynamic Microphone Preamplifier Circuit with PCB

Last Updated on: September 27, 2023 by Apichet Garaipoom
Transistors Dynamic Microphone Preamplifier Circuit with PCB

The Dynamic Microphone Preamplifier circuit. So low noise signal,use three transistor (2SC945, or 2C1815 or 2SC828) is transistor amplifier with a low noise […] Read more

Categories Amplifiers Tags Microphone Preamplifiers 17 Comments
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