Diy Links Resource

[ This is the original work by our beloved rickcr42, whom we'll always remember for his dedication to the Head-fi community and the DIY forum ]
 
 
This sticky will be for links to DIY parts , plans and general DIY project aids , both foreign and domestic.

Unfortunately only I or another mod can add to the "database" or it may become too disorganized for use by those needing such information .

Feel free to PM me with any recomendations or to report broken links



[size=large]UNDER CONSTANT CONSTRUCTION[/size]




************************************************** *******



[size=medium]DIY PARTS[/size]
__________________________________________________ _______________


PARTS SUPPLIERS


U.S.A.

Antique Electronic Supply
http://www.tubesandmore.com/

Angela Instruments
http://www.angela.com/

Action-electronics
http://www.action-electronics.com/

Audio Grade-presently down will leave this link until I know the details !
http://www.geocities.com/audiograde/ [ X ]

Triode Electronics
http://store.yahoo.com/triodeel/index.html
http://www.triodeelectronics.com/

Audio Express - printed circut boards for Audio Amatuer/Glass Audio articles
http://www.audioxpress.com/

Mouser Electronics
http://www.mouser.com/index.cfm?handler=home/

Digi-Key Electronics
http://www.digi-key.com/

Michael Percy Audio
http://www.percyaudio.com/

Markertek
http://www.markertek.com/

Allied Electronics
https://www.alliedelec.com/default.asp

Handmade Electronics
http://www.hndme.com/

Wellborne Labs - Audiophile Parts, Nice Selection
http://www.welbornelabs.com/parts.htm

Cardas Audio OEM/DIY page
http://www.cardas.com/oem/index.html

DAC Parts
http://www.bkcgroup.fsnet.co.uk/DACS...IO%20CHIPS.htm [ X ]

Small Bear LLC , many unique parts at very good prices.Geared towards "stompbox" guitar effects but definately of interest to any DIYer. Thanks Erix
http://www.smallbearelec.com/

BD Enterprises
http://www.bdent.com/

The Parts connection
http://www.partsconnexion.com/


Parts Express
http://www.partsexpress.com/


AES-Audio Electronic Supply
http://www.audioelectronicsupply.com/

JAMECO Electronics
http://www.jameco.com/

Newark Electronics
http://www.newark.com/

The Tube Store
http://www.thetubestore.com/

Moon Audio-really nice connectors at a fair price
http://www.moon-audio.com/

Westlake Electronics-another nice source for connectors and wire
http://www.westlake-electronic.com/

Madisound-mainly speaker oriented but other parts available such as coils , capacitors , damping , hardware
http://www.madisound.com/


U.K.

Cricklewood : UK Parts Supplier-thanks pinkfloyyd
http://www.cricklewoodelectronics.co...tomer/home.php

Maplin : UK parts
http://www.maplin.co.uk/


ITALY

WASP-Wilder's Amp Special Parts : Italian parts supplier mainly geared to the guitarist/guitar amp builder but also fills a need for more European suppliers.Many useful parts available.
http://www.waspware.it/ [ X ]

AudioKit : Another Italian page with a large selection of audio grade parts
http://www.audiokit.it/index.htm

 
NETHERLANDS

Qables DIY parts: Netherlands parts supplier mainly geared to the LOD and headphone recable builder. Many useful parts and wire available.
http://www.qables.com



CHASSIS , ENCLOSURES , FABRICATION , PROTOTYPING

Hammond Enclosures: Very large selection
http://www.hammondmanufacturing.com/scpg.htm

Design,build,Listen-off the shelf and custom work
http://www.designbuildlisten.com/

Active Plastics
http://www.activeplastics.com/

On-Line Metals
http://www.onlinemetals.com/

http://www.thlaudio.com/

Front Panels Made to Order
http://www.frontpanelexpress.com/

PacTec Enclosures
http://www.pactecenclosures.com/

Beautiful Wood! Perfect for that Tube Amp.
http://www.welbornelabs.com/woodchassis.htm

Yeager Audio-A really nice chassis at a fair price that is perfectly sized for a stereo tube amplifier.Is finished in s oft gloss black,c\Comes with the IEC jack,Fuse holder and rubber feet so all that is left is the actual tube socket hole cutouts.
http://www.yaegeraudio.com/

LMB/Heeger
http://www.lmbheeger.com/

BUD Industries
http://www.budind.com/index.php3

SESCOM - good selection , custom chassis punching available
http://www.sescom.com/enclosures/enclose.html [ X ]

Lansing Enclosures
http://www.lansing-enclosures.com/

PAR metal
http://www.par-metal.com/

AudioKits-small but nice selection of audio specific chassis/enclosures at a fair price
http://www.audiokits.com/products.asp?catid=111

IAG (International Audio Group) : These are very nice aluminum chassis with hardwood caps.Not cheap but very nice just the same.
http://iagaudio.com/products.asp?id=4


Enclosures And Cases Dot com :Nice selection of quality chassis-cast tube,rack style,desktop,flanged
http://www.enclosuresandcases.com/index.html


AmpboxAudio : So far only two offering but those two are really nice.One is a drop in for the Tripath amp,the other is a "Eurobox" and accepts standard Euro-cards-
http://mywebpages.comcast.net/ampbox/index.html

Germany

Fischer Elektronik
http://www.fischerelektronik.de/


Zero Cases : Unusual but very nice deep drawn metal enclosures (custom work available)-
http://catalog.zerocases.com/ [ X ]




OTHER HARDWARE

BrownDog Adapters: IC adapter boards
http://cimarrontechnology.com/index.asp


Just a really nice knob
http://www.welbornelabs.com/hardware.htm
The knob is no longer listed on the website !.Will update link if it re-appears.

Wood Knobs
http://pages.sbcglobal.net/quackfat/_wsn/page5.html [ X ]

DIY Wood Knobs
http://www.audiotweaks.com/diy2/scott_knobs/page01.htm





TRANSFORMERS

Lundahl - High Quality Tube Oriented Audio Transformers
http://www.lundahl.se/index.html

Hammond Transformers - transformers for power supplies and tube audio
http://www.hammondmfg.com/5cindex.htm [ √ ]

Jensen Transformers - High quality audio matching step up and isolation transformers
http://www.comtran.com [ X ]

SESCOM - audio matching step up and splitting transformers
http://www.sescom.com/audio/audio.html [ X ]

Avel-Lindberg Toroid Transformers - custom design also
http://www.avellindberg.com/transfor...mers_index.htm

Plitron toroid transformers
http://www.plitron.com/

Toroid.Com - toroid transformers
http://www.toroid.com/

Victoria Magnetics
http://www.victoriamagnetics.com/ [ X ]

Heyboer Audio Transformers :Vintage guitar/Amp transformers
http://www.heyboertransformers.com/ [ X ]

Edcor U.S.A. - dirt cheap but good quality and custom work available for a very easy price :
http://www.edcorusa.com/Products/Default.aspx [ √ ]

James Transformers
http://www.octave-electronics.com/Parts/james.shtml

Magnequest
http://www.magnequest.com/home.htm

Cinemag-High Quality audio Transformers :
http://www.cinemag.biz/

Antrim Transformers U.K.-Toroid Mains Power And Tube Output Transformers.custom work available :
http://www.antrimtransformers.com/home_page.php

Sowter U.K.-High quality Audio transformers including Headphone Cupling,DAC Coupling and Vintage Pro Gear direct replacements (API,RCA,Fairchild,Etc.) :
http://www.sowter.co.uk/

Stevens & Billington,U.K.-

Hashimoto Electric-Japan : Former maker of the "Sansui" brand audio output transformers.Not only are the products very high in high quality but there is a wealth of information on vintage Sansui Tube Amps plus a nice selection of modern amp schematics.If your interests run to the Pentode or Tetrode amp this is a must visit web site :
http://www.tube-amps.net/index.htm



[size=medium]DIY RESOURCES[/size]
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PCB Resources

Express PCB
http://www.expresspcb.com/

CadSoft Eagle Lite
http://www.cadsoft.de/freeware.htm







SEMICONDUCTOR MANUFACTURERS

Texas Instruments/Burr-Brown
http://www.ti.com/

Analog Devices
http://www.analog.com/index.html

Linear Technology
http://www.linear.com/

Holtek
http://www.holtek.com/English/default.htm [ √ ]

National Semiconductor
http://www.national.com/

International Rectifier: MOFETS, HEXFREDS, Class D Amps
http://www.irf.com/

On-Semiconductor
http://www.onsemi.com/home

Crystal Semiconductr
http://www.cirrus.com/

Maxxim
http://www.maxim-ic.com/StartPage.htm


Intersil/Elantec
http://www.intersil.com/cda/home/

Zetex Semiconductor
http://www.zetex.com/frame.asp?page=...m/3.0/3-10.asp

Japan Radio Corp (JRC)
http://www.njr.com/





DATA SHEETS/APPLICATION NOTES

Data Sheet Archive : Punch in the number and get the datasheet,even obsolete devices-
http://www.datasheetarchive.com/

Jensen Transformer schematics archive
http://www.comtran.com/apps_sc.html [ X ]

Tube Data sheet index
http://www.triodeel.com/tubedata.htm

http://www.mif.pg.gda.pl/homepages/frank/index.html

Tube manuals RCA , Telefunken , Western Electric - even if the manuals are not your interest visit this site . It is just too cool for humans
http://www.vcomp.co.uk/manuals/manuals.htm

Rane, data, app notes mainly relating to pro sound but usable, if you look hard enough there are pdf files of some headphone amps but I didn't say it .
http://www.rane.com/library.html


Frank's Electron Tube Page ; a HUGE resource for tube datasheets . HUGE !
http://home.wxs.nl/~frank.philipse/frank/frank.html [ X ]


Welcome to tube data ; the real deal ,check it out
http://w1.871.telia.com/~u87127076/index.htm [ X ]

InterFet Application Notes : JFET Applications
http://www.interfet.com/pdf/App_Notes.pdf





TECHNICAL DOCUMENTS

http://focus.ti.com/docs/apps/catalo...ata/audio_ovw/

http://www.analog.com/en/technical-documentation/resources/index.html [ √ ]

http://www.linear.com/designtools/ [ √ ]

http://www.irf.com/technical-info/

http://www.aikenamps.com/TechInfo_2.htm

Tube Tech
http://www.zwengelamps.com/tech.html [ X ]

Tube Basics / Theory
http://www.thevalvepage.com/valvetek/valvetek.htm

Tube For Newbies-pretty extensive yet understandable resource that describes basic tube operation and theory
http://www.bonavolta.ch/hobby/en/audio/t_bas.htm


Rane Professional Audio Reference - not just for the pros , good solid information on sound and hearing,audio terms explained , a HUGE resource
http://www.rane.com/par-num.html

Understanding Headphone Power Requirements
http://www.rane.com/note100.html [ X ]

John Conover Spatial Distortion page - discusses crossfeed and offers a new solution
http://www.vt52.com/

Three Dimensional Sound links - enough to keep you busy for months !
http://www.users.dircon.co.uk/~wareing/3daudio.htm [ X ]

Basic Electrical Theory explained - a good read
http://www.kimber.com/reference/basicelectronics/tablecont.htm [ √ ]


Introduction To Capacitors
http://my.execpc.com/~endlr/index.html

Basics Of Vacuum Tubes
http://www.radau5.ch/basics_1.html

Navy Electrical Engineering Training Series
http://www.tpub.com/neets/

Scots Guide To Electronics
http://www.st-andrews.ac.uk/~www_pa/...o/electron.htm

Technical information on recording via computer
http://www.rme-audio.de/en_support_techinfo.php [ √ ]

DC Circuit Analysis
http://www.rexrobards.com/ampco/dcca00.html [ X ]

Anatomy of a Vacuum Tube
http://www.rexrobards.com/ampco/tube_parts.html [ X ]

Anatomy Of A Vacuum Tube Amp
http://www.rexrobards.com/ampco/theory.html [ X ]

audioXpress Audio Classroom Series :Circuit Design Series For Tube Amp Design
http://www.audioxpress.com/resource/...lass/index.htm

Electrical Engineering Training Series :Well this Is Almost Too Much Information But If You Are Looking To Really Learn Electronics This Is The Joint ! Link provided by erix
http://www.tpub.com/content/neets/14178/index.htm

This almost falls under The "Way Too Much Information" Category but if you want to know,and if you did not you would not have scrolled this far-look here ,thanks Erix
http://ken-gilbert.com/technical_articles.htm

Amplifier design E-book : discusses in detail amplifier design by stage.A good read-thanks PPL
http://paginas.fe.up.pt/~fff/eBook/MDA/MDA.html

The Hawksford Papers : Wide ranging topics from amplifier design and theory ,acoustics,speaker design,soundspace manipulation and to digital from the very beginning until now .A must read for those into the more theoretical and technical end of audio.
http://www.essex.ac.uk/ese/research/...lications.html


Eric Barbour Tube Basics-Very easy to undersatand yet very informative.Highly recommended reading if you are new to tube DIY because it covers all the basics in an easy to understand style :
http://www.classahighperformance.com...used.htm#Using [ X ]



SYSTEM CONNECTIONS LIBRARY

Mostly pro audio links but if anyone knows how to make things work it is those who's livelyhood depends on good results and not on the job training or "theory" :

Belden Cable-"Cable College" :
http://www.belden.com/03Products/03_TechnicalInfo.cfm [ √ ]

Jensen Transformer Application notes :
http://www.jensen-transformers.com/apps_wp.html

Whirlwind Tech :
http://whirlwindusa.com/support [ √ ]

RANE Notes Specific To System-Interconnection :

Grounding and Shielding Audio Devices-
http://www.rane.com/note151.html

Sound System Interconnection-
http://www.rane.com/note110.html

Why Not "Y" ?-
http://www.rane.com/note109.html

Interfacing AES3 and S/PDIF-
http://www.rane.com/note149.html

Unity Gain and Impedance Matching-
http://www.rane.com/note124.html

Practical Line Driving-
http://www.rane.com/note126.html

Grounding and Shielding Computer Audio Devices-
http://www.rane.com/pdf/compgrou.pdf

System Problems A.K.A Pin-1 Problems-
http://www.rane.com/pdf/whitlock.pdf

Douglas Self on Balanced Lines-
http://www.dself.dsl.pipex.com/ampins/balanced/balanced.htm [ √ ]

Ian Gregoey : Balanced vs Unbalanced Lines-
http://www.ians-net.co.uk/articles/balanced_lines.php

EDCOR U.S.A. -
http://www.audiotransformers.net/solutions.htm [ X ]
http://www.audiotransformers.net/applications.htm [ X ]


SOWTER : More on Grounding and connections-
http://www.lundahl.se/pdfs/papers/groundin.pdf




ENTIRE BOOKS FOR DOWNLOAD

Analog Devices : Philbrick Applications Manual for Computing Amplifiers - for Modeling, Measuring, Manipulating & Much Else
75 MB PDF File but downloadable by chapters or the full 75 MB
A very comprehensive book with a lot of valuable information
A MUST READ for the more technical minded DIYers.
http://www.analog.com/library/analog...mplifiers.html

Analog Devices "A Designer's Guide To Instrumentation Amplifiers (2nd edition)".Very detailed and a must read if you want to implement balanced inputs .
http://www.analog.com/en/amplifiers-and-comparators/instrumentation-amplifiers/products/design-handbooks/CU_dh_designers_guide_to_instrumentation_amps/resources/fca.html [ √ ] note: 3rd edition

Texas instruments "Op Amps For Everyone Design Guide" rev B-Ray Mancini---2 meg pdf file
http://www-s.ti.com/sc/psheets/slod006b/slod006b.pdf

Full Tube Manuals-RCA Radiotron Tube Manual 1929-huge ! , Western Electric Tube Manual 1933, Telefunken Valve Manual 1930
http://www.vcomp.co.uk/manuals/manuals.htm

Audio Handbook No. 1 - Norman H. Crowhurst : Tube Audio Fundamentals
http://richard984.tripod.com/vacuum_tube_literature.htm

Electro Voice P.A. Bible-if you contemplate live sound for any reason either for a band or to address a small gathering this is an essential read
http://www.electro-voice.com/downloads.php [ √ ]

Western Electric AMPLIFIERS : This is THE definitive WECO Amplifier Handbook and they are all there in pdf files for download until you have the entire book.
don't let the age ot the technology fool you,these are serious amps and way before their time in the design area-
http://www.audiosharing.com/archive/...mp/we_amp.htm#







ONLINE ELECTRONIC SEMINARS


Analog Devices Design Seminars-very inclusive and covers a lot of ground
http://www.analog.com/en/content/webinar_home_page/fca.html [ √ ]

Texas Instruments E-Lab Webcasts :
http://focus.ti.com/general/docs/gencontent.tsp?contentId=32275 [ √ ]

Texas Instruments Audio Classes-online classes
http://focus.ti.com/general/docs/tra...sp?appAreaId=1






INTERACTIVE SOFTWARE

Texas Instruments Development Tools & Software :
http://focus.ti.com/general/docs/dev...hdr_s_devtools


Analog Devices Interactive Design tools :
http://designtools.analog.com/dt/sdtutorial/sdtutorial.html [ √ ]


National Semiconductor Power Supply Designer :
http://www.national.com/appinfo/webe...power&step=0A/

National Semiconductor Active Filter Designer "
http://webench.national.com/appinfo/...quirements.cgi

National Semiconductor Amplifier design Tool :
http://webench.national.com/appinfo/...t_topology.cgi

National Semiconductor Chip Amp Selector :
http://webench.national.com/appinfo/webench/audio



Audio Scientific Calculators Links List-HUGE LISTING !
http://www.audioscientific.com/Auto%...es%20Links.htm






FREE SOFTWARE

http://focus.ti.com/docs/analog/cata...20(FilterPro)/

http://www.linear.com/software/

http://www.marchandelec.com/fg.htm Marchand frequency generator . A truly useful device for audio testing and setup.
BUT ! Be aware that pure tones at high levels can destroy a headphone or loudspeaker transducer ! Turn the volume DOWN totally and bring it up slowly.

http://www.ethanwiner.com/gadgets.html Mic pads and other small gadgets . While geared towards microphones has an application in any audio situation .
Tough to categorize this but since there is also a nifty free calculator to go with the designs I put it here . See page bottom . Only a 26 K download . Way cool .

http://www.dogstar.dantimax.dk/testwavs/index.htm
Audio Test signals to download-really complete set , recommended

http://www.dazyweblabs.com/shannonsoft/page3.html advanced software , very complete ; thanks to John Cheadle [ X ]

http://audio.rightmark.org/


nice set of audio test files , includes 24 biut and 96 khz
http://www.rme-audio.com/english/download/audtest.htm [ X ]


Duncan Amps-essential software if you design with tubes-Power Supply Designer ll , Anode load Calculator , Speaker Impedance Calculator , Tone Stack Calculator and the Tube Data Sheet Locator-Highly recommended
http://www.duncanamps.com/software.html

Genelec (Mnitor Speaker Manufacturer)-more audio test tones including a sweep tone from 10 to 150 hz and pink noise
http://www.genelec.com/learning-center/test-signals/ [ √ ]





ONLINE CALCULATORS

Capacitor Conversion http://www.krstarica.com/eng/convers...=10&iz=17&u=15

Four Band Resistor Color Coide
http://samengstrom.com/elec/resistor/index.html

Five Band Resistor Color Code
http://samengstrom.com/elec/resistor/5band.html

stepped Attenuator
http://margo.student.utwente.nl/klaas/audio_step.htm [ X ]

stepped attenuator 2
http://www.quadesl.com/attenuator.html

LM317 VR Resistor Calculator-AMZ
http://www.muzique.com/schem/lm317.htm

Convert Decibels To Gain-AMZ
http://www.muzique.com/schem/gain.htm

Convert Voltage Gain To Decibels-AMZ
http://www.muzique.com/schem/decibel.htm

LED Resistor Value Calculator-AMZ
http://www.muzique.com/schem/led.htm

Simple RC Filter Cutoff-AMZ
http://www.muzique.com/schem/led.htm

Op-Amp Noise Calculator-AMZ
http://www.muzique.com/schem/opcalc.htm

Calculators Online software -Engineering A-Z
http://www.martindalecenter.com/Calculators.html [ √ ]

Hagerman-Phono Cartridge Loading
http://www.hagtech.com/loading.html


Headphone Amplifier Power Calculator-Determines how much power you will need for your headphone amp to deliver to your headphones.Simple to use :
http://www.headphone-amplifier.com/calculator.htm



[size=medium]DIY AUDIO SECTION[/size]
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HEADPHONE AMP AND OTHER DIY PLANS OF INTEREST
Non-profit links only

HeadWize - The Most Extensive DIY Headphone Amp Library On The Planet
http://gilmore2.chem.northwestern.edu/projects/ [ √ ]

Audiologica-Head-Fi Member Tangent's web page covering all aspects of headphone amp design and building-"A Must Visit" that picks up where HeadWize stops and fills in the blanks
http://tangentsoft.net/audio/


Pete Millett's Website . He is/was Wheatfield Audio . Some really cool Tube And Hybrid Designs
http://www.pmillett.com/


TNT HODA ( high dynamics op-amp )
http://www.tnt-audio.com/clinica/dynamicopamp_e.html


The Fi Primer , no headphone amps but a must read
http://tinpan.fortunecity.com/saints/668/primer/

Prof . W. Marshal Leach Jr. , Articles have apeared in Audio Magazine (defunct , a pity it broke me in along with Popular Electronics) loads of great info and DIY plans
http://users.ece.gatech.edu/~mleach/

MicDiyers home page , plans to make a micset for your MD or other recorder , binaural baby !
http://www.imazda.com/mazdaracer/mic/micdiyers.html  [ √ ]

SoundStage Synergizing - archived DIY cheap tweeks , racks , interconnects , etc.
http://www.soundstage.com/synergize/synergize.htm

Shavano Music Online - mucho information for the audio DIT enthusiast , check it out
http://www.colomar.com/Shavano/construction.html

RJM Audio Cable - Richard Murdey's website with many cable designs , plus his version of the Szekeres Amp as published at HeadWise in the Project Library . Mucho good stuff
http://phonoclone.com/index.html [ √ ]

My First Tube Amp-Very informative,especially the section on biasing
http://members.tripod.com/~gabevee/mytubamp.html

Steve Bench's Tube Pages-many innovative designs including portable amps using DC converters
http://greygum.net/sbench/sbench101/ [ √ ]

Extensive set of worldwide tube links
http://tubesall.hihome.com/tube.htm

DIY Mania - A Korean Site (use babel fish )
http://www.diymania.net/

Walt Jung's web page with the original audio op-amp serie of articles from EDN magazine , plus the original Audio Electronics Magazine article on the super regulator-these are a must read for any person interrested in DIY audio . Download them and enjoy
http://waltjung.org/ [ √ ]


Bonavolta-large scheamatic library,mostly tube amps but a couple of headphone amps and some classic phono stages . Be sure to check out the section on tube design theory
http://www.bonavolta.ch/hobby/en/aud...adphone%20Amps

The Class-A Amplifier Site : Mostly concerned with building the classic John Lindsey hood JLH Class-A Amplifier but includes a couple of JLH discrete transistor headphone amps plus other class A amplifier schematics
http://www.tcaas.btinternet.co.uk/

Stax ES Headphone Transformer interface : Using Lundahl Transformers-Andrea Ciuffoli 2001
http://www.audiodesignguide.com/my/stax_transf.html

Stax ES Headphone 4300B Tube Amp - Andrea Cuiffoli
http://www.audiodesignguide.com/my/stax_amp.html

Stax ES headphone 4300B Tube Amp 2 - Andrea Cuiffoli 2002
http://www.audiodesignguide.com/my/stax_amp2.html


Svetlana Construction Articles and Technical notes Using Svetlana tubes-no true headphone amps but many nice amp designs and enough information to whip up your own designs :
http://216.87.144.102/svetlana/techbulletins.asp [ X ]


DIY Tube Audio Resource Guide : This is a PDF file that has clickable links to other files directly from the resource guide.Pretty cool and damn convenient
http://www.tubeseller.com/docs/tube_links.pdf [ X ]





DIY TIPS AND TECHNIQUES


GEO circuit layout tutorial - thanks budgie
http://www.geofex.com/Article_Folder...oto_styles.htm

Curcio Audio DIY resource -soldering tutorial , troubleshooting overview, DIY bible , recomended tools ,construction guidelines
http://www.curcioaudio.com/sup_3.htm


Some nice projects for recording- http://www.celestial.com.au/%7Erosswood/diy.htm

NASA Soldering video thanks to ofb
http://radiojove.gsfc.nasa.gov/help/ [ √ ] note: section 3.

Replacing Capacitors In Old Radios-but applies to vintage electronics of all types
http://antiqueradio.org/recap.htm

Connector Wiring Diagrams @ Van Den Hul : All there and if it isn't you don't need it
http://www.vandenhul.com/artpap/wiring.htm [ X ]

Switch Training Manual from Eaton Electrical-Very easy to understand manual on the how and why of switching :
http://www.eatonelectrical.com/unsec...NINGMANUAL.PDF

Jung and Kester onaudio Op-amps :
[/URL Computer Audio article f...ositive Feedback Magazine Ar...nugent.htm</a>





DIY RELATED ONLINE MAGAZINES

Tube CAD Journal
http://www.tubecad.com/

TNT Internet Magazine
http://www.tnt-audio.com/int.html

Zero Distortion Internet Magazine
http://www.zero-distortion.com/glavna.htm [ X ]

Valve Magazine , geared towards tube audio with many great construction articles , including a 6GM8 headphone amp. Read online or download the pdf
http://www.bottlehead.com/valve/valve.html [ X ]

NEWSLETTERS AND MAGAZINES FOR DOWNLOAD

Audio Basics newsletter from Audio By Van Alstine - 1984 to 1984 - tips , techniques , plans , including a couple of headphone amps , Dyna mods , lotsa good stuf here boys and girls
http://www.avahifi.com/index.php?option=com_content&view=article&id=85&Itemid=181 [ √ ]


Sound Practices - selected articles in pdf format for download : mostly tube amp related but good reading
http://www.southernelectricaudio.com/library.html [ X ]

Analog Devices "Analog Dialog" Magazine Archive
http://www.analog.com/library/analog.../archives.html





TWEAKS

AudioTweaks : Entire site dedicated to audio tweaking
http://www.audiotweaks.com/diy2/scott_knobs/page01.htm


The Audio Analyst (Greg Weaver) Tweakfest-nicely done
http://www.positive-feedback.com/pfb...kfest.7n3.html




TROUBLESHOOTING GUIDES

Curcio Audio Troubleshooting Guide : This is a pdf file and is specific to the individual audio device rather than a "system" troubleshooting guide but is very useful for getting that project working when there is a problem.
http://www.curcioaudio.com/Troublesh...20Overview.pdf

Troubleshooting Flow Chart-By Frank Van Alstine : system flow chart for weeding out system interconnection troubles.Print it out and keep it near your sound system for reference :
http://www.avahifi.com/index.php?option=com_content&view=article&id=88&Itemid=184 [ √ ]

Tweak Shop Troubleshooting Flow Chart: This one is online and links to individual "problem" pages unlike the above which you can download.Very intuitive and maybe a better way to go for some.
http://www.tweakshop.com/Troubleshooting/ChartOne.html

Troubleshooting And Repair Of Consumer Electronics -EVERYTHING you need to know and then some !
http://www.repairfaq.org/REPAIR/F_tshoot.html


DIGITAL AUDIO

http://www.nanophon.com/audio/index.htm

http://www.lavryengineering.com/supportpage.html=




[size=medium]AREA 51[/size]
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MISC.

anything that does not quite fit above

Soldering Learning/Practice Kit : Inexpensive kit for learning how to solder that will save you $$$ in the long run.Learning to solder is 90% of what you need for DIY audio and better to learn right than to destroy expenive parts or ruin ciruit board if you are not adept-
http://www.circuitspecialists.com/prod.itml/icOid/8492

Annoyances Dot Org - windows fixes and programs
http://www.annoyances.org/

Circuit Exchange International - lot of stuff here
http://www.mitedu.freeserve.co.uk/ [ X ]

Electrostatic Headphone circuit-serious database on past and present electrostat headphones , including repair info and specs
http://www.audiocircuit.com/9111-esh...t/9111IMAI.htm [ X ]
also check out the dynamic headphone circuit while there for info on just about every can ever made :
http://www.audiocircuit.com/9112-dyn...t/9112IMAI.htm [ X ]
not sure what is going on with this site and will keep the link for now


this is just soooo cooool !
http://home.att.net/~theremin1/200/wien.html [ X ]


ANALOG X - Very useful Active X related software for Windows and Music,tiny,fast and best of all FREE !
http://www.analogx.com/contents/download/audio.htm

History Of american Broadcasting-very cool,even has .wav files of historical radio and television moments
http://jeff560.tripod.com/broadcasting.html [ √ ]

THE RECORDING FAQ-plenty of useful information even if you do not record
http://www.phys.tue.nl/people/etimme...ordingFAQ.html

The American Widescreen Museum-a MUST visit ! Just too cool for humans . Extremely high recommendation
http://www.widescreenmuseum.com/index.htm



JUST FOR FUN

Cool desktop virtual theremin
http://www.bbc.co.uk/science/playground/theremin1.shtml
No longer available at the BBC website-alternate source here-
http://www.humboldtmusic.com/eldingreen/theremin.html


Mousing Virtual Theremin :
http://www.sagebrush.com/mousing.htm


Play A Piano - interactive java piano with oscilloscope display - see the waveform as you play !
http://www.frontiernet.net/~imaging/play_a_piano.html

Audio Related Humor - We could all use a good laugh once in a while-good for the heart ! (also some truly useful information here)
http://www.roger-russell.com/truth/truth.htm#norelco


VINTAGE GEAR

Western Electric AMPLIFIERS : This is THE definitive WECO Amplifier Handbook and they are all there in pdf files for download until you have the entire book.
don't let the age ot the technology fool you,these are serious amps and way before their time in the design area-
http://www.audiosharing.com/archive/...mp/we_amp.htm#


Vintage Electro-Voice : Vintage Tube amps ,Vintage Microphones,Speaker Driver Specs ,Enclosure Plans,Vintage 50s-60s-70s Catalogs
http://geocities.com/tadgesualdo/12trxbwebsite.html

Lansing Heritage :JBL/Altec Lansing Info ,Brochures ,Driver Specs ,Enclosure Diagrams,Electronics Brochures and Amp Schematics
http://www.audioheritage.org/intro.htm

Hi-Fi Literature :Vintage Catalogs/Information From Many Companies with More Added All The Time
Vintage H.H.Scott Hi-Fi Stereo ...tp://www.hhscott.com/]http://www.hhscott.com/

Nostalgic Kit Central : Heathkit ,Eico ,Allied Radio/Knight-listing of most model numbers with pictures for most plus some unique "in the box" kit photos
http://www.nostalgickitscentral.com/ [ √ ]

Heathkit Virtual Museum : Name Says It All
http://www.heathkit-museum.com/

H.J. Leak :
http://werple.net.au/~kiewavly/Leak.html [ X ]

The Eico Homepage :Eico Information And Schematics
http://users.rcn.com/fiddler.interport//EICO.HTM [ X ]

McIntosh History Page-interesting reading ,great pictures and history
http://www.roger-russell.com/aboutmc.htm

One electron-consumer Audio Schematics-vintage schematics
http://www.one-electron.com/FC_Consumer.html

One Electron-pro audio equipment-vintage schematics
http://www.one-electron.com/FC_Consumer.html

One Electron-Misc. Documents Page-Extremely unique resource of old mazine article and corporate papers dealing with tube gear.Old yet still valid content
http://www.one-electron.com/Misc_Docs.html#AG300

Electro Voice P.A. bible : PDF files for download and a MUST read if you are into live sound no mater the venue-large or small.Also on the site are the plans for the classic EV Century iV Horns.all in all a pretty cool site
http://www.desperadocycles.com/Music...A_Listener.htm [ X ]

The "Unofficial" Altec Page-Vintage speaker plans and electronics schematics,Pro-Sound info and much more :
http://alteclansingunofficial.nlenet.net/index.html

Voice Of The Theater-More vintage Altec content

Tannoy-Cabinet plans and specifications for vintage Tannoy loudspeakers :
http://users.bigpond.com/tunnelgap/Tannoy/tannoy1.html [ X ]
http://members.tripod.com/fn8142b/Tannoy.html

AmpsLab-Not in the above sites ? Then look here.Many "unique" and less common schematics including some vintage receivers not seen elsewhere :

http://www.ampslab.com/vintage1.htm


The Vinyl Playback System

This area will be for all things vinly disc related

Turntable Set-Up

Cartridge Set-Up

Record Care

A nice easy to understand tutorial :
http://www.smartdev.com/Cleaning-tutorial.html [ X ]

Galen Carol : "Caring For Your Records"
http://www.smartdev.com/Record_care.html [ X ]

Watts Record Care Booklet
http://www.smartdev.com/Watts.pdf [ X ]

LoriCraft Bi-Directional Record Cleaning Article
http://www.smartdev.com/Bidirectional.html [ X ]



more to come..............