Audio Circuits - Power Amplifiers Electronic Circuits, Page 3

Audio Circuits: Power Amplifiers Page 3
Audio Circuits -- Main Page
Audio Power Amplifiers: # A-G H-O P-R S-Z
Last Updated on: Monday, November 02, 2009 03:40 PM

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

Headphone Amplifier (circuitdb) - Both halves of the circuit are identical. Both inputs have a dc path to ground via the input 47k control which should be a dual log type potentiometer. The balance control is a single 47k linear potentiometer,..... (added 05/07)

Headphone Amplifier headphone - An amplifier to drive low to medium impedance headphones built using discrete components. (added 10/05)

Headphone Amplifier redcircuits - (circuit added 9/04)

Heathkit W3AM - (circuit added 11/06)

Heating System Thermostat - Controlled by indoor and outdoor temperature. Simple, high reliability design. (circuit added 9/04)

HI FI Headphone Amplifier - (schematic / circuit design added 9/02)

HI FI PreAmplifier - (schematic / circuit design added 9/02)

Hi-Fi Headphone Amp - Contributed by a reader, this is a very nice circuit (circuit added 2/07)

High Current Regulated Power Supply - (circuit diagram added 6/07)

High Performance Audio Applications of the LM833 - RIAA Phono preamplifier stages and active crossover ne2-rks (app note added 3/03)

Interfacing 5 Volt CMOS to 12 Volt loads - (circuit diagram added 6/07)

Isolates & Converts Speaker Drive to Line Level - AS068 Jenson Transformer Application Note (app note 11/02)

JT-115K-E Cascode Tube Microphone Input Stage - AS054 Jenson Transformer Application Note (app note 6/07)

JT-115K-E Tube Microphone Preamp Generic Input Stage - AS020 Jenson Transformer Application Note (app note 6/07)

JT-13K6-C in Simple One IC Stage Mic Preamp - AS017 Jenson Transformer Application Note (app note 04/03/02)

JT-16-A in Single Stage Low-Noise IC Mic Preamp - AS018 Jenson Transformer Application Note (app note 6/07)

JT-16-A in Single Stage Mic Preamp with Two DC Servos - AS019 Jenson Transformer Application Note (app note 6/07)

JT-346-AX as Ribbon Mic Matching Transformer - AS067 Jenson Transformer Application Note (app note 6/07)

JT-MB-D Converts 600 Ohm Unbalanced Mic to 150 Ohm Balanced Mic Line - AS049 Jenson Transformer Application Note (app note 11/02)

JT-MB-D Passive Stereo Matrix for M-S Mic Technique - AS055 Jenson Transformer Application Note (app note 11/02)

Leach Amp 120 Watt Power Amplifier - Latest update of the "Low Tim Amplifier", Claimed to be a very good sounding design (added 4/02)

Leach Superamp - 270-Watt Double Barreled Amplifier published in Audio magazine (added 4/02)

LM1876-Overture Audio Power Amplifier Series Dual 20-Watt Audio Power Amplifier with Mute & Standby Modes - The LM1876 is a stereo audio amplifier capable of delivering typically 20W per channel of continuous average output power into a 4 or 8 load with less than 0.1% THD+N.….(added 05/08)

LM317 Regulator With Pass Transistor - (circuit diagram added 6/07)

LM317 Variable Voltage Regulator - (circuit diagram added 6/07)

LM380 Power Audio Amplifier - National Semiconductor Application Note (app note added 2/06)

Low Noise Balanced Microphone Preamp - A discrete front end makes this balanced microphone preamp very quiet, and it has excellent noise rejection. Since the SSM2017 has been discontinued (sad but true), and if you can't get the INA217 this may be the ideal replacement…(added 4/02)

Low Noise version of High Level Output Stage in 1031 - AS033 Jenson Transformer Application Note (app note 11/02)

Low Power Audio Amplifier Based on LM386 - (schematic / circuit design added 9/02)

Making Your Own HeadBanger - After the euphoria over receiving my new Sony Minidisc bundle had partially subsided, I noticed that the portable unit, the MZ-E40, has a rather weak output. Measurements showed that it can only manage 80mV rms output and only about 74dB SPL output from the phones. This is when recording at average level with 8dB of headroom. In contrast, an orchestra...(diagram added 6/03)

Microphone Phantom Power Supply - (electronic circuit added 7/03)

Mini Amplifier with LM386 - The LM386 is a low voltage audio power amplifier, simple and easy to build a mini amplifier with only a few components. (7/03/2006)

Mini Bench Amplifier - This mini audio amplifier will test the audio stages in amplifiers such as the front end of FM bugs. You can also use it on lots of our other projects as well as the output stages of radios. It is a very handy piece of test equipment and will make a perfect addition to your collection.....(electronic circuit added 4/05)

Mini Portable Guitar Amplifier - Can be fitted into a packet of cigarettes. Also suitable as Fuzz-box (added 3/05)

MOSFET Power Amp - DIY high power MOSFET amplifier200 Wrms 8 ohms -350 Wrms4 ohms (added 4/02)

Ms Stereo Decoder - (electronic circuit added 7/03)

Ms Stereo Microphone - (electronic circuit added 7/03)

One Watt 2.3 GHz RF Amplifier using a Mrf2001 - (diagram added 6/03)

One Watt 2.45 GHz Linear Amplifier - (electronic circuit added 4/05)

Overture Audio Power Amplifier Series Dual 20-Watt Audio Power Amplifier with Mute & Standby Modes - The LM1876 is a stereo audio amplifier capable of delivering typically 20W per channel of continuous average output power into a 4 or 8 load with less than 0.1% THD+N.….(added 05/08)

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