| N9Tew - http://www.hamtubes.com A supplier of vacuum tubes for ham, audio and antique radio purposes. - Read more |
| New Sensor Corporation - http://www.sovtek.com Manufacturer and wholesale distributor of vacuum tubes and electronic parts. Sovtek tubes. - Read more |
| Pacific TV Vacuum Tube Sales - http://members.shaw.ca Vacuum tubes and vacuum tube socket sales for antique radio, audio and ham use. We ship worldwide. Online schematics, technical data and photo gallery. - Read more |
| Penta Laboratories - http://www.pentalaboratories.com Manufacturer and distributor of electron tubes for broadcast, industrial, marine and avionics applications worldwide. - Read more |
| Phamitech International Company Ltd - http://www.phamitech.com Exporter of electron tubes, TWT, valves, thyratrons, magnetrons, klystrons, transmitting tubes, heating tubes, vacuum interrupters and X-ray tubes made in China - Read more |
| RadioPistoia by Pierluigi - http://www.radiopistoia.com Audio tube amplifier project. European tube number guide. Links to other tube sites. [English, Italian] - Read more |
| Rf Power EXchange - http://www.rfpowerx.com RF power tubes and transistors, large inventory. - Read more |
| Russian/Soviet - http://www.ominous-valve.com Tube factories and their logos. - Read more |
| Shortwave Transmitter Tubes - http://www.tube.be A service from TDP with links to and information about the manufacturers, rebuilders and distributors/suppliers of tubes. An extensive list of data sheet sources. - Read more |
| Superior X-Ray Tube Company - http://www.superiorxraytube.com Manufactures high quality custom-made x-ray tubes for a wide range of applications such as thickness gauging, food inspection, bone densitometry, dental, medical, and baggage inspection. - Read more |
| Svetlana Applications Notes - http://www.rfparts.com Application notes on the care and feeding of Svetlana tubes, mostly for high power service. - Read more |
| TechInfo_2 - http://www.aikenamps.com Vacuum tube equations, design and technical information. - Read more |
| Thales Electron Devices - http://www.thales-electrondevices.com Provides electron tubes for space, telecom, radio and TV broadcast, military , X-ray imaging, science and industry applications. Includes products specifications and application notes. Formerly Thomson Tubes Electroniques. - Read more |
| The Invention of the Vacuum Tube - http://www.maxmon.com In 1879, the American inventor Thomas Edison publicly exhibited his incandescent electric light bulb for the first time. - Read more |
| The Tube CAD Journal - http://www.tubecad.com A monthly webzine devoted to vacuum tube circuit design and understanding. - Read more |
| The Tube Center - http://www.thetubecenter.com Providing HAM and amateur radio operators, antique radio enthusiasts, audio professionals and hobbyists the ability to choose from an inventory over 2000 different tube types. - Read more |
| The Tubes and Valves Online Database - http://www.ginko.de European electron tube charts with characteristic data, basing diagrams, and application info. Includes Russian types. - Read more |
| Triode Electronics, Inc. - http://www.triodeelectronics.com Tubes and parts for hi-fi, radio and guitar. Tube data and amp schematics, links to tube amp information. - Read more |
| Tube Datasheet Database - http://www.nj7p.org Datasheets for about 3,000 vacuum tubes. - Read more |
| Tube Rebuilders - http://www.econco.com Technical data, theory, trouble shooting information for high power tubes. - Read more |
| Tube World, Inc. - http://www.tubeworld.com Vacuum tubes and sockets for sale. - Read more |
| Tubeopedia - http://www.tubeopedia.com A wiki encyclopedia of information on vacuum tubes and related topics including equipment that uses tubes, circuits, theory, and companies. - Read more |
| TubeTronic - http://www.tubetronic.com Vintage Vacuum Tubes and Test Equipment. Audio tubes, TV tubes, Radio tubes and Electron tubes. 12ax7, 12au7, 12at7, Generators, Analyzers, and Counters. - Read more |
| Vacuum Tube FAQ - http://shay.ecn.purdue.edu How to use them and how they work. One of the more accurate vacuum tube FAQs on the net. - Read more |
| Vacuum Tube Index - http://www.ee.ualberta.ca Vacuum tube resources for students and more advanced users.Everything from fundamental techniques to SPICE simulation. - Read more |
