Today let’s try to make a microphone. By using a condenser microphone preamplifier circuit. Why would we need said circuit? Because of its high sound sensitivity, easy to use, small, and cheap. For example, It can be connected directly to your power amplifier through the AUX channel. Then, you could hear your voice clearly from … Read more
Make the easiest Low impedance input preamplifier circuit using transistor and a few components. With PCB layout and how to reduce hum and low noise output.
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.
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:
This is Low noise microphone preamplifier circuit using IC-NE5532, M5218P. Simple circuits but high quality balance-Unbalance Input for dynamic microphone