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Simply-designed outboard DAC improves computer audio quality. Scot Hacker is the author of O’Reilly’s MP3: The Definitive Guide, and writes about music for Stuck Between Stations.

Simply-designed outboard DAC improves computer audio quality

By day, he’s a webmaster and trainer for the Knight Digital Media Center at UC Berkeley. A few weeks ago, during a spell of unusually dry winter weather, I went to unplug a pair of Grado SR-80 headphones from my iMac. A spark of static electricity leapt from my fingers, I heard a brief crackling sound, and then… [silence]. From that moment forward, the headphone/speaker jack on the back of the Mac has refused to work, and only “Internal Speakers” showed up in the System Preferences Sound panel.

My trusty work Mac had gone mute. My only options were either to send the Mac in for repair or switch to USB audio output. Make a Yamaha Synth for less than £25.00 « Shown below is the near-completed synth.

Make a Yamaha Synth for less than £25.00 «

This clearly shows the Yamaha daughterboard, with it’s 26 pin header top right, plugged into the breakout-board I made. On the BOB, are mounted everything else except the power-supply, which was kept deliberately separate. I mounted a small fan, underneath the DB50XG, and provided an exit vent for warm air beside the audio output sockets, thus ensuring that heat is drawn away from the unit, and from the heatsinks on the three regulators.

My almost-completed synthesizer. In the following schematic, you will notice that most of it is concerned with powering the daughterboard. You may prefer to use an existing supply, (or supplies) and omit if necessary some of the PSU components. Audio Projects, Schematics,etc. Diy audio. WAV Trigger Online User Guide – robertsonics. WAV Trigger Online User Guide Back to the top Powering the WAV Trigger The WAV Trigger is typically powered through the on-board 5.5×2.1mm barrel jack.

WAV Trigger Online User Guide – robertsonics

The allowable input voltage range is 6 to 12VDC, and the jack is center-positive. Electronic Circuits.


Audiophile. Index of /diy/Schematics/Tone Control and EQs. Index of /diy/Schematics/Tone Control and EQs. Audio projects, circuits and audio kits. Simple Mixer Schematics. Simple Mixer Schematics PREAMBLE: I've been cooking audio circuits for so long now I no-longer need a recipe.

Simple Mixer Schematics

A lot of the theory I have forgotten over the years because I've just gotten to know the circuits by instinct. But this should serve as something of a guide to designing mixers from scratch. The idea: Most people reading this would be well aware of what a mixer is used for but I'll reiterate here. The job of an Audio mixer is to combine various audio signals into a single audio signal. It is better known in electronic terms as a summing circuit. Muting Transistor Attenuator Circuits and the 2SC2878. Among semiconductors, the muting transistor and its audio application is perhaps the most obscure and poorly understood of all.

Muting Transistor Attenuator Circuits and the 2SC2878

Online Circuit Simulator with SPICE. ESP Projects Pages - DIY Audio and Electronics. Category Index of Projects Page Last Updated - April 2015 Main Index Projects Index Projects Sorted By Number Pricelist Note Carefully Although I am happy to provide assistance to prospective builders, I cannot (and will not) be drawn into prolonged e-mail exchanges if the project does not work as expected.

ESP Projects Pages - DIY Audio and Electronics

It is inevitable that in some cases (due to component tolerances, for example), a project may require a different value resistor, capacitor (or whatever) to correct for an unexpected variation. Please do not attempt the construction of any project which you do not fully understand, or if you do not feel completely confident that you can build the project without further assistance.

Under no circumstances should any reader construct any mains operated equipment unless absolutely sure of his/her abilities in this area. Page created August 2012 to replace individual pages.


Meters. Op-Amp Circuits Archives - Circuits Gallery. Diy speakers. AT51%20DIY%20VU. Audio - Do-It-Yourself Circuits. DIY-page Welcome to the Gyraf Audio DIY-page.....

Audio - Do-It-Yourself Circuits

Please read this first!! The projects described on these pages are not commercial in any way. This means that we DO NOT sell PCB's, kits, or anything like that. It also means that any for-profit use of the information on these pages is strictly prohibited. Please DO NOT contact us regarding parts or info for the DIY-projects, as we don't sell anything related to these - they're kept strictly non-commercial. 20.

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Elliott Sound Products - The Audio Pages (Main Index) Pages Last Updated March 2014 Welcome to ESP, the home of DIY audio articles, projects and shortform kits.

Elliott Sound Products - The Audio Pages (Main Index)

Audio is a wonderful hobby, and with DIY there is a huge scope to get the very best performance for a lot less money than otherwise. DIY audio is fun and educational, and by building your own audio equipment, you get to learn electronics as well as build equipment that would cost a great deal more in the shops. ESP is committed to providing high quality projects that are known to work, printed circuit boards (PCBs) for the most popular projects, and to assist you if necessary to complete or debug your project.

There is a very wide range of power amplifiers, preamps, guitar/ bass amplifiers, studio equipment, effects, and other projects to build, including loudspeakers, subwoofers, and many others. IMPORTANT: Please see the disclaimer for information about these pages. Dates shown in RED indicate new or updated pages, typically within the last two months.