24W Audio Amplifier (Class A)

This is the circuit diagram of 24 Watt class A linear audio amplifier, built and tested by Marc Klynhans from…

55 years ago

Simple 3 Channels Mini Audio Mixer

This is the simple and low cost 3 channels mini audio mixer circuit diagram. This circuit supplied using 9V power…

55 years ago

35W Power Audio Amplifier based LM391

Here the 35W power audio amplifier circuit based on LM391. Inductor L1 is constituted by 20 coils of wire, with…

55 years ago

18W Audio Amplifier

This is the circuit diagram of 18W audio amplifier. The circuit is quite simple and inexpensive to built. It uses…

55 years ago

Diode Zener Tester

This is the circuit diagram of zener diode tester which tests zener diodes with breakdown voltages extending up to 120…

55 years ago

Active FM Booster

This is a simple low cost circuit of an active FM booster that can be used to amplify the FM…

55 years ago

Digital Variable Resistor / Potensiometer DS1669

The DS1669 is an electronic digital rheostat manufactured by Dallas Semiconductor. This component has a function similar to digital variable…

55 years ago

2 Way Speaker Box Design

This is 2 way speaker box design for audio system. I've used this design for my home audio system, the…

55 years ago

USB Power Booster for PC / Laptop

This is the circuit diagram of USB power booster, expecially to strength the power capability of USB port from PC…

55 years ago