Amplifier Circuits - Audio Amp electronic Schematics, Page 2

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Audio Amplifiers: #'s - A B-G H-L M-O P-S T-U V-Z
Last Updated on: Friday, March 12, 2010 12:07 PM

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

Electret Condenser Microphone amplifier - microphone pre-amplifier for an Electret Condenser Microphone, pdf file

Electret Microphone Connection - how to connect electret microphone (added 4/02)

Electret Microphone Powering - (electronic schematic added 8/02)

ESP SIM Sound Impairment Monitor - a method of determining just how much your amplifier modifies the original signal (added 4/02)

Fender-Tone Tube Headphone Amplifier - This tube amplifier with sonic controls has a paralleled White cathode follower output stage for driving low impedance headphones. The sonic controls consist of a Fender tone stack (bass, mid and treble), and ambience and blend controls. Includes simulation files for use with OrCAD Lite software. Designed by Alex Cavalli (circuit design added 04/05/06)

FM Voice Transmitter - This miniature transmitter is easy to construct and it's transmissions can be picked up on any standard FM radio. It has a range of up to 1/4-mile (400 meters) or more, depending on the line-of-sight, obstructions by large buildings,etc. It is great for room monitoring, baby listening, nature research,....(electronic design added 6/07)

FXBus - an Effects Experimenter's Delight! - Like to build guitar effects? Want a cleaner way to experiment than perfboarding each new one? You'll love FXBus.….(circuit design added 04/05/06)

GAINCLONE - Gainclone is a single integrated circuit based on an operational amplifier (op amp) on a single substrate of silicon. The LM3875 is the "weapon of choice". This great chip, is a little larger than the size of a thumbnail and can deliver up to 56W RMS continuous with 100W ....(added 07/07/07)

Gainclone 2x68 Watt Full Amplifier - In this application, we are building a gaincard like amplifier. This application type is named gainclone in audio world. To take a satisfactory audio response, we are adding a Linkwitz equaliser to the feedback line and adding bass compensation also. We are using LM3886....(circuit design added 07/07/07)

Gainclone Amp - You read where the subjective reviewer tells of the equipment vanishing and revealing the music unfettered. Well for the first time with any of mine or anyone else's gear that this is what I hear. There are no speakers there is just the music. A soundstage projecting from the wall behind....(07/07/07)

Gainclone Amplifier - GainClones have VERY few components and this one is based on the National Semiconductor LM3875 IC. The PCBs and components are very simple and quick to make, only took about 20 mins to assemble both amps and rectifier board. DC offset was about 80mV on one channel and about 40mV...(added 07/07/07)

GainClone Amplifier - The amp is based on the Project 19 PCB, so uses a pair of LM3876 (or LM3886) power opamps, run from a ±35V supply. I used a cut-down P88 preamp PCB because I only wanted one preamplifier stage, but the entire board can also be used. Alternatively,….(added 07/07/07)

General purpose 2 x 2 Watts power amplifier - If you are a real electronics amateur, than you'll need a good audio power amplifier to be used in your endless experiments. Contents: Schematics, PCB's and photos.….(circuit design added 08/08)

Gainclone for the PC Age - Audio input comes from either the Line-Out of the PC or an external sound card (described later). A small filter consisting of 680Ω/47pF excludes any RF signals from entering the case. 470nF input capacitor should have a high voltage rating since it protects against line voltages being connected to the amplifier, since it is in the signal path it should be a high quality type....(circuit added 07/08/09) designed by Malcolm Rix

Guitar Amplifier - ….(design added 08/08)

Guitar Amplifier 10 Watt - Old-Style ultra-compact Combo2-inputs-Overdrive-Treble-enhancement (added 9/04)

Guitar Fuzz Box - This circuit was designed to obtain a valve-like distorted sound from an electric guitar or other musical instrument. For this purpose a very high gain, three-FET amplifier circuit, was used. The output square wave shows marked rounded corners, typical of valve-circuits when driven into saturation. Therefore, the distorted sound obtained from such a device has a peculiar tone, much loved by most leading guitarists. ….(electronic schematic added 11/08)

Gyrator Filter Design Info for Single Amp EQ - The gyrator is used in place of the inductor in a LC filter. (circuit added 08/08/08)

Audio Amplifiers: #'s - A B-G H-L M-O P-S T-U V-Z