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Audio Amplifiers: Simple Audio Amplifier Electronic Circuits

These are our selection of simple audio amplifier circuits. These should be relatively easy to construct, and the components should be relatively ubiquitous (meaning readily available).

0 Comments - in Audio Amplifiers
This simple stereo audio amplifier will amplify audio for your low-medium impedance headphones and give you left/right balance control
Photo: One Watt Audio Amplifier One Watt Audio Amplifier
1 Watt Audio Amplifier. 8 Ohms impedance. 20 Hz to 20 kHz. Small, few components.
Describes the schematic (circuit diagram) and PCB (Printed Circuit Board) for a cheap 100-150 Watt audio amplifier with few components.
Shows an electronic circuit diagram (schematic) for a simple 10 Watt audio amplifier, using only 4 transistors.
PCB plans and circuit diagram (schematic) for what appears to be an extremely nice 100 watt guitar amplifier. Includes preamplifier and power amplifier circuit diagram and PCBs
Photo: Electronic Circuit: Audio Amplifier Module Kit Electronic Circuit: Audio Amplifier Module Kit
Variable gain audio amplifier capable of powering a small speaker for personal use
Photo: High Quality 25 Watt Audio Amplifier High Quality 25 Watt Audio Amplifier
High quality 25 watt audio amplifier. Combining 2 would give a 50 watt stereo amplifier.
Photo: Stereo Audio Amplifer - 10 Watts Stereo Audio Amplifer - 10 Watts
This kit uses the TDA2009 class AB audio amplifier IC for high quality stereo applications.
Photo: 7 Watt Mono Audio Amplifier 7 Watt Mono Audio Amplifier
A Mono audio amplifier which produces a very good 7 watts output power.
Photo: One Watt Stereo Amplifier (2x1 Watt) Electronic Kit One Watt Stereo Amplifier (2x1 Watt) Electronic Kit
2 channel (Stereo) Audio Amplifier with 1 watt per channel.
Photo: 2 Watt Stereo (2 Channel) Audio Amplifier 2 Watt Stereo (2 Channel) Audio Amplifier
2 watts of power across to channels is what this kit delivers. Great quality.
Photo: Stereo Pre Amplifier Kit Stereo Pre Amplifier Kit
Amplify tiny audio signals fifty times with this electronic kit, and deliver them to a power amplifier cleanly and undistorted. AGC (automatic gain control) eliminates distortion. This circuit is useful in boosting the output from tape heads, microphones
0 Comments - in Audio Amplifiers
This high gain earphones amplifier electronic circuit has a microphone, the sound from which it amplifies by a very high level so you can listen things to with lower volume easily.
No Photo Available 18 Watt Mono Audio Amplifer
18 Watt Mono Audio Amplifier. Possible to use two for Stereo sound.
Photo: 3 Watt Stereo Amplifier Kit 3 Watt Stereo Amplifier Kit
Stereo 3 Watt Amplifier kit that powers two 4 or 8 Ohm speakers.