Audio

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» ATSI Advantage Tube Services - Vacuum tubes, tubes, electron tubes: NOS and current for the most demanding audiophile and hobbyist.
» Advanced Tube Services - Vacuum tubes, electron tubes,and sockets for high end audio, guitar, radio and industry. Tested, selected , grade, low noise matched pre amp and power output audiophile grade tube sets are speciality.
» Amp Mechanic.com - Music retailer dealing in amplifier tubes and parts, with tutorials on do-it-yourself amp modification and repair.
» Angela Instruments - Audio electronic specialty items for professionals and hobbyists; worldwide shipping.
» Aprilsound - Audiophile audio transformers and accessories.
» Audio Valve - One of the world fine art tube and valve amplifer for hifi stereo produced in germany.
» Audiomod - Can modify old tube or solid state equipment to sould like new using the latest components. Charges for labor time. Parts and return shipping are billed at cost. Free estimates.
» BD-Design - High-efficiency loudspeakers for tube amps. Turntables and other electronics.
» Bottlehead.com - A tube audio DIYer's site - single ended audio kits, parts, efficient speaker designs, and the cyberVALVE e-zine.
» Curcio Audio Engineering - High resolution vacuum tube audio systems.
» David Berning Co. Audio amplifiers - This site contains product information on Berning audio amplifiers that are in production now, as well as technical and service information on discontinued models.
» Direct Heating - An association for audiophiles in search of musical sound through hand made vacuum tube amplifiers.
» Duncan's amp pages - Contains a very large collection of datasheets, schematics and PSPICE models,plus freely downloadable software.
» Dutch High-End Audio. - PN designs and sells kits for audiophile amateurs. Included are amplifiers, loudspeakers and D/A-converters. Coupla good things in "Tips and Tricks".
» Electron Tubes - Source for electron tubes and valves. Free members area with more than 3500 specs and substitute.
» Electron Tubes for Industry - Vacuum (electron) tubes for audio, broadcast, ham radio, hobby, industrial, academic and scientific users. Pricing is segmented by product function group.
» Eurotubes - Importer of premium european vacuum tubes direct from the manufacture.
» Fi-Sonik - Audio transformers, transformer materials, parts and accessories for tube amps.
» Frank's Page - Data sheets, tube type list, tube bases, American substitutes for foreign types, and vice versa.
» Fuchs Audio Technology - Fuchs Audio technology is the online home of audiophile modifications & products, as well as musical instrument amplifiers by Andy Fuchs.
» Fust-electronica - Netherlands source for tube information and sales of NOS tubes; Philips and Telefunken.
» Homebrew Tube Amp Corner - Information, and pointers to information, for folks building or otherwise tinkering with vaccuum tube amplifiers.
» IGA Valves - Spanish connection for tubes and valves
» Jena Labs-- Home Page - Cable kits
» LaserBase - Vacuum tube isolation stand improves the performance of digital equipmentand improves all tube gear including tube CD players.
» Machmat Tube And High-efficiency Pages - Information about tubes. Tube datasheets, tube schematics, tube code explanation, tube sales, and tube schematics explained.
» Maxi-Test Company - Digital tube testers for matching and testing power pentode vacuum tubes used in musical equipment amplifiers.
» Mesa/Boogie - Manufacturers of legendary guitar amps, and recent entry into the High-end audio world, with the Mesa Baron, a way cool feedback-configurable tube amp.
» Meta-Gizmo - Dr. Harvey "Gizmo" Rosenberg's (December 7, 1941 - July 19, 2001) home page. An outspoken practitioner of the audio arts.
» Milbert Amplifiers, Inc. - Tube car audio amplifiers and tube crossovers.
» Modifying the ST-70 - Instructions for modifying the Dynaco ST-70, from a stock rebuild to performance mods.
» New Sensor Corporation - Distributor of Sovtek, other current production vacuum tubes, and NOS tubes. Distributor of electronic parts for audio and musical instrument amplifiers. Manufacturer/ Distributor of Electro-harmonix effects.
» Research Design & Engineering in Audio - Site devoted to Vacuum Tubes world applied to Audio Science. Consulting, Design and Engineering in Audio. Power Amplifiers. Hi-End Products.
» Sowter Transformers Home Page - Sowter Audio Transformers (E A Sowter Ltd)
» Steve's Tube Pages - Welcome to Steve's Vacuum Tube Related Web Site. DIY site with schematics, how-to's and theory.
» Studio M - Importer and distributor of high quality hi-fi parts: Lundahl, OEP, Riken, SCR. Located in Italy.
» The Brent Jessee Recording Homepage - Audiophile, antique, radio, TV, and industrial types of vacuum tubes. Also an online garage sale and a complete list of audio editing and restoration services.
» The New Tube Co. - Supplier of all types of tubes, speakers, sockets, Jolida Tube amps, caps, Tolex. Brands include Svetlana, Sovtek, JJ/Tesla, EI, Philips, and GE.
» The Vacuum Tube FAQ - A basic introduction to vacuum tubes by Henry Pasternak.
» The Vacuum Tube Page - Welcome to The Vacuum Tube Page. Answers the question, "What's so great about tubes?" "Must read" for those getting started in thermionics.
» Transformers for Audio Equipment - Transformers power supplies and related equipment for audio equipment. Also EL inverters and magnetron transformers. Company is located in England.
» Triode Electronics - Tubes and parts for Hi-Fi, radio, guitar; tube data and amp schematics.
» Tube Tester Manuals - SND Tube Sales
» TubeTronic - Vintage vacuum tubes and test equipment. Selection of electron tubes and audio tubes such as 12ax7, 12au7, and 12at7.
» Tubeguy - Tube audio hobby page of category editor, Joseph Lee Plaziak; not to be confused with the original TubeGuy!
» Tubes Vacuum Electron - Tubes for Sale. High end audio, guitar amps, preamps... One page only.
» Vacuum State Electronics - Silver foil cabling
» Vacuum Tubes - Vacuum Tube Sales - Provider of fine vacuum tubes for audio, guitar, and high end amplifier applications.
» Valvotronics by Robert Derby - Manufacterer of high end tube audio electronics, including the Gain Ryder 3 compressor.
» Watford Valves - UK-based tube supplier. "Digitally matched and graded valves for the music industry."
» World Tube Audio Portal - Directory for tube audio related parts and services. Forum, chat, free classifieds.
» XM26 Vacuum Tube Electronic Crossover Network - XM26 Vacuum Tube Electronic Crossover Network
» audio nova - audio hifi diy links - English/Swedish information resource. Swedish-only online magazine.
» vacuumtubes - A site devoted to vacuum tube fans. Buy, sell,and trade vacuum tubes. NOS vacuum tubes listed for sale.
» www.soundpractices.com - Joe Roberts' web site. Many links.