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

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/

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

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.hammondmanufacturing.com/5cindex.htm

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

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

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/

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

Edcor U.S.A. - dirt cheap but good quality and custom work available for a very easy price :
http://www.edcorusa.com/transformers/

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/

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

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/products/

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/

Transformers for tubes

Bartolucci transformers - From Italy
http://www.audiomarketing.net/bartolucci

Lundahl Transformers - From Sweeden
http://www.lundahl.se/index.html

Shinrock Transformers - From Germany
http://www.shinrock.com/

Tribute Transformers - From Holland
http://www.tribute-audio.nl/

Toroid Corp - From USA
http://www.toroid.com/

Softone's - From Japan
http://www.icl.co.jp/audio/english/

Antrim Transformers - From Ireland
http://www.antrimtransformers.com/

Variable Voltage Technology Ltd - From UK
http://www.vvttransformers.co.uk/

Audio Calculators

Audio calculators for all occasions. There is a huge range here - something for everyone...

http://www.audioscientific.com/Auto%20Calc...ces%20Links.htm

Online electronics calculators

work out resonance, capacitance, inductance, resistance and time constants on-line

http://www.cvs1.uklinux.net/calculators/

Knobs & stuf related

Electronic Hardware Corporation
http://www.ehcknobs.com/

OEP Inc.
http://www.oep.com/

Elma
http://www.elma.com/Americas/English/Produ...ssories_31.aspx

Gaurang Electronic Industries
http://www.gaurang.com/collet-knobs.htm

Clague Sales Corp.
http://www.claguesales.com/sitemap.htm

RAF Electronic Hardware
http://www.rafhdwe.com/

Audiokit Mania
http://www.audiokitmania.com/accessories.htm

dhtsound
http://www.dhtsound.com/

thlaudio
http://www.thlaudio.com/image.htm

Thomas Net
http://www.thomasnet.com/nsearch.html?
cov=NA&which=prod&what=knobs&navsec=search&heading=42281907

Out Of The Blue
http://www.outofthebluedesignstudio.com/cabinet.html

Futurlec
http://www.futurlec.com/SwKnob.shtml

Kilo International
http://www.kilointernational.com/knobs/knobs.html

VT4C Studio
http://www.vt4c.com/shop/program/main.php?...p_id=2&hit_cat=

The FET specialists.
Audio mod kits components for hi-end audio at good prices.

Borbely Audio
http://www.borbelyaudio.com/

TECHNICAL DOCUMENTS

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

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

Basic Electrical Theory explained - a good read
http://www.kimber.com/atomic-struct/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/

Technical information on recording via computer
http://www.rme-audio.com/english/techinfo/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.
http://ken-gilbert.com/technical_articles.htm

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

Pioneer stuff

http://akdatabase.org/Pioneer/PioneerComponentDatabase.htm - Pioneer Components from the mid 1960s to the early 1990s.

Grill Cloth For Speakers & Stuff Related

Antique Radio
http://www.grillecloth.com/

Speaker and Fabric Restoration
http://www.vintage-radio.com/repair-restor...re-speaker.html

Plastic Coated Grill Cloth
http://www.new-foam.com/fabric1.asp

Grill Cloth / Tolex / Piping
http://www.tubesandmore.com/

How to: build speaker grills
http://www.humanspeakers.com/howto/grill.htm

How to: Install speaker grill cloth
http://www.humanspeakers.com/howto/grill-cloth.htm

Speaker Grill Cloth @Vibroworld.com
http://www.vibroworld.com/parts/tech10.html

Audio Heritage JBL great pix
http://www.audioheritage.org/vbulletin/sho...ead.php?t=10709

Acoustone Speaker Grille Cloth
http://www.acousticalsolutions.com/product...rille_cloth.asp

Auto Acoustics grille cloth & suff
http://www.autoacoustics.com/speakergrillecloth.htm

Grille Cloth Handcrafted Custom Guitar Speaker Cabinets
http://www.tone-tools.com/grillecloth.html

Wood veneer finish

http://www.bellforestproducts.com/exotic_t...CFSoMQgod0RSFAw

http://www.tone-tools.com/wood.html

http://www.axiomaudio.com/customstudio.html

http://www.io.com/~patman/finish.html

http://www.timbertraders.com.au/

Veneering Guides

http://members.iinet.net.au/~dixonbi/TL6Ven.htm

http://www.joewoodworker.com/veneering/wor...opperveneer.htm

http://www.restoration-advice.org/Pages/veneering.html

Electronics software

http://www.epanorama.net/links/software.html

Electronic Potting and Encapsulating Compounds

Protects sensitive electronic components from impact, shock, vibration, heat, conductivity, moisture, etc

http://www.jgreer.com/electronic_potting.htm

http://www.epicresins-electronics.com/

http://www.intertronics.co.uk/products/acc02.htm

http://www.fongyong.com.tw/en_product-epox...nt-compound.htm

http://www.epoxies.com/potting.htm

http://www.solarcompounds.com/products/epec.asp

http://www.thomasnet.com/products/encapsul...16902603-1.html

http://www.theepoxysource.com/potting_compounds.asp

http://www.pottingsolutions.com/