4 types of Preamplifier circuits using Transistors
This is Simple preamplifier circuit using transistors,low noise and easy to builds we have many circuit below, simple to difference projects […] Read more
Audio Circuits
2 Simple Buzzer Circuit
This buzzer circuit is simple, small, cheap, and requires 3V to 12V. It only uses transistors, piezo or small speaker, and a few components. Read more
Universal Preamplifiers using – NE5532 – LM382 – 741
You have a good power amplifier and speaker. You are listening to music. But the sound is very light. The problem has many reasons. One reason for the problem is the input signal is too low. You may need a preamplifier using IC. It will make the input signal is higher. Then, You will listen … Read more
LM386 Audio Amplifier Circuit with PCB
This is an LM386 audio amplifier that can be used with a small 9 volt Battery Operated,Current use as little as 5 milliamps.And amplification up to 500 mW. Read more