Audio Circuits - Power Amplifiers


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Audio Circuits: Power Amplifiers Page 1
Audio Power Amplifiers: # A-G H-O P-R S-Z

Last Updated on: Thursday, May 15, 2008 09:14 AM

Audio Circuits -- Main Page

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

1 Watt 2.3 GHz RF Amplifier using a MRF2001: (diagram added 6/03)
10 Watt Amplifier: (circuit added 9/06)
10 Watt Power Amplifier: Simple Class A Amplifiers (added 4/02)
100 Watt Guitar Amplifier #2: (schematic / circuit design added 9/02)
100 Watt Guitar Amplifier Mk2: (circuit added 7/02)
100 Watt Rms Amplifier: This is a100-Watt basic power amp that was designed to be (relatively) easy to build at a reasonable cost. It has better performance (read: musical quality) than standard STK module amps that are used in practically every mass market stereo receiver manufactured today. When I originally built this thing, it was because I needed a100 WPC amp and didn't want to spend any money. So I designed around parts I had in shop. (added 4/02)
16 Watt Amplifier: (diagram added 6/03)
16 Watt Bridge Amplifier: (electronic schematic / circuit added 9/06)
18 Watt Audio Amplifier: High Quality very simple unit. No need for a Preamplifier (added 9/04)
2 Watt Amplifier #1: (circuit added 9/04)
2 Watt Amplifier #3: (schematic / circuit design added 9/02)
2 Watt Amplifier: (schematic / circuit added 9/06)
2.3 GHz Power Amplifiers: Note: quality of text is poor. (added 4/05)
20 Watt / Channel Stereo Power Amplifier: (circuit added 2/07)
20 Watt Amplifier: (schematic added 9/06)
20 Watt Class a Power Amplifier: (schematic / circuit design added 9/02)
20 Watt GaAs-FET Power on 2.3 GHz: (diagram added 6/03)
20 Watt Power Amplifier: Designed to be used as car amplifier (added 4/02)
20 Watt/Channel Stereo Power Amplifier: (schematic / circuit design added 9/02)
200 Watt Amplifier: (electronic schematic / circuit added 4/02)
20w Amplifier: (electronic circuit added 4/05)
22 Watt Audio Amplifier: Simple stereo amplifier based on TDA1554... (circuit design added 10/06)
220 Watt Power Amplifier: This is a building plan for an audio amplifier with2 x220-Watt output power. Text is in Finnish. (added 4/02)
25 Watt MOSFET Amplifier: High Quality simple unit. No need for a Preamplifier (added 9/04)
250 Watt Amplifier: (electronic circuit added 10/06)

2W Amplifier: Amplifier operates in Class AB mode; single 470R preset resistor controls quiescent current flowing through BD139/140 complimentary output transistors. Adjustment here, is a trade-off between low distortion and low quiescent current. Typically, under quiescent conditions, standby current may be 15 mA rising to 150 mA with a 50 mV input signal. A simulated frequency response is ... (added 2/07)

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Audio Power Amplifiers: # , A-G H-O P-R S-Z