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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. (infos)Lohmann X-Ray
Manufacturer of industrial and medical X-ray tubes, including tubes for medical, dental, and industrial applications. (infos)
House of Tubes
Ham radio and audio tubes. Online catalog with secure ordering. (infos)
Tube World, Inc.
Vacuum tubes and sockets for sale. (infos)
Electron Tube Data Sheets
Type index, high powered tubes and data sheets in PDF format. (infos)
Electron Tubes for Industry
Mostly industrial product line. (infos)
Brand X-ray Tube Co., Inc.
Manufacturer of x-ray tubes for use in medical, dental and industrial imaging and inspection applications. (infos)
Antique Electronic Supply
Books, transformers, capacitors, and resistors. Has an online catalog and shopping cart. (infos)
The Invention of the Vacuum Tube
In 1879, the American inventor Thomas Edison publicly exhibited his incandescent electric light bulb for the first time. (infos)
MachMat main
Vacuum tubes for the audio amp market. (infos)