See also:

• Recreation: Radio: Amateur: Boatanchors: Tubes  (45)

• Brand X-ray Tube Co., Inc. - Manufacturer of x-ray tubes for use in medical, dental and industrial imaging and inspection applications.
• Burle Industries, Inc. - Manufacturer and supplier of specialized electron tubes and electro-optic products. USA.
• California Tube Laboratory, Inc. - Electron tube and vacuum tube manufacturer. High power CW and pulse magnetrons, klystrons and power grid tubes. Product listings and data sheets, and outline drawings.
• Collins Tube Specials - Listing of surplus tubes, searchable database.
• D & C Electronics - World-wide distributor of electron tubes, sockets and magnetrons. Replacement tubes for Perkin Elmer mass spectrometer.
• Daily Electronics Corp. - Electron and vacuum tubes. Industrial, military, broadcast and entertainment applications supplied from inventory. Hard to find and obsolete tubes available.
• Electron Tube Data Sheets - Type index, high powered tubes and data sheets in PDF format.
• Electron Tubes for Industry - Mostly industrial product line.
• Freeland Products, Inc. - Rebuilder of vacuum power grid tubes for industrial, radio and television applications.
• House of Tubes - Ham radio and audio tubes. Online catalog with secure ordering.
• The Invention of the Vacuum Tube - In 1879, the American inventor Thomas Edison publicly exhibited his incandescent electric light bulb for the first time.
• Kennetron, Inc - Offering rebuilt vacuum, oscillator, induction and transmitter tubes.
• Lohmann X-Ray - Manufacturer of industrial and medical X-ray tubes, including tubes for medical, dental, and industrial applications.
• MachMat main - Vacuum tubes for the audio amp market.
• Magnatek X-ray sources - "Integrated X-ray generators". Also prototype x-ray sources. Danish company.
• New Sensor Corporation - Manufacturer and wholesale distributor of vacuum tubes and electronic parts. Sovtek tubes.
• 20000 NOS Electron Tubes - NOS and used tubes, rare valves, virtual museum.
• N9Tew - A supplier of vacuum tubes for ham, audio and antique radio purposes.
• Pacific TV Vacuum Tube Sales - Vacuum tubes and vacuum tube socket sales for antique radio, audio and ham use. We ship worldwide. Online schematics, technical data and photo gallery.
• Penta Laboratories - Manufacturer and distributor of electron tubes for broadcast, industrial, marine and avionics applications worldwide.
• Phamitech International Company Ltd - Exporter of electron tubes, TWT, valves, thyratrons, magnetrons, klystrons, transmitting tubes, heating tubes, vacuum interrupters and X-ray tubes made in China
• Superior X-Ray Tube Company - 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.
• Thales Electron Devices - 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.
• The Tube Center - 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.
• Tube World, Inc. - Vacuum tubes and sockets for sale.
• TubeTronic - Vintage Vacuum Tubes and Test Equipment. Audio tubes, TV tubes, Radio tubes and Electron tubes. 12ax7, 12au7, 12at7, Generators, Analyzers, and Counters.
• Vacuum Tube Valley - All about vacuum tubes. Tube audio amp kits.
• Vacuum Tubes, Inc. - Worldwide sellers of vacuum tubes and electron tubes for audio, radio, and industry
• Vintage SoundWorks - Service for all makes of vintage tube amplifiers and radios. NOS and new and used vacuum tubes.
• Yueqing Zhengli Rectifier Corp. - Tube rectifiers. Site in English and Chinese.