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2. List of vacuum tubes - Wikipedia

   en.wikipedia.org/wiki/List_of_vacuum_tubes

   This is a list of vacuum tubes or thermionic valves, and low-pressure gas-filled tubes, or discharge tubes. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. Many industrial, military or otherwise professional tubes were also produced.

3. Western Electric (tube manufacturer) - Wikipedia

   en.wikipedia.org/wiki/Western_Electric_(tube...

   Western Electric Export Corporation (or simply Western Electric) is a manufacturer of vacuum tubes and high end audio gear. Based in Rossville, Georgia, the company builds an ultra-premium version of the 300B electron tube. It traces its roots to 1872 with the Bell Telephone Company and the original Western Electric. The original AT&T-based ...

4. Vacuum tube - Wikipedia

   en.wikipedia.org/wiki/Vacuum_tube

   Later thermionic vacuum tubes, mostly miniature style, some with top cap connections for higher voltages. A vacuum tube, electron tube, [1] [2] [3] thermionic valve (British usage), or tube (North America) [4] is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.

5. Traveling-wave tube - Wikipedia

   en.wikipedia.org/wiki/Traveling-wave_tube

   The TWT is an elongated vacuum tube with an electron gun (a heated cathode that emits electrons) at one end. A voltage applied across the cathode and anode accelerates the electrons towards the far end of the tube, and an external magnetic field around the tube focuses the electrons into a beam. At the other end of the tube the electrons strike ...

6. Teltron tube - Wikipedia

   en.wikipedia.org/wiki/Teltron_Tube

   A teltron tube (named for Teltron Inc., which is now owned by 3B Scientific Ltd.) is a type of cathode-ray tube used to demonstrate the properties of electrons. There were several different types made by Teltron including a diode, a triode, a Maltese Cross tube, a simple deflection tube with a fluorescent screen, and one which could be used to ...

7. Tung-Sol - Wikipedia

   en.wikipedia.org/wiki/Tung-Sol

   In the Institute of Electrical and Electronics Engineers, there were digests of papers presented at a conference on electron tubes for March 29–30, 1948. Mr. C. Everett Coon of the Tung-Sol Lamp Works, Inc., Bloomfield Electron Tube plant provided citations on the various electron tubes on major industrial applications. [24]

8. 6P1P - Wikipedia

   en.wikipedia.org/wiki/6P1P

   6P1P tube manufactured by Svetlana, USSR (winged "C" logo), 1971 A comparison of Svetlana 6P1P (left), 6P1P-EV and Beijing Electron Tube Factory 6P1 (right) The 6P1P (Russian: 6П1П) is a Soviet-made miniature 9-pin beam tetrode vacuum tube with ratings similar to the 6AQ5, EL90 and the 6V6. Because of a different pinout (a 9-pin base versus 7 ...

9. EL34 - Wikipedia

   en.wikipedia.org/wiki/EL34

   The EL34 is a thermionic vacuum tube of the power pentode type. The EL34 was introduced in 1955 by Mullard, who were owned by Philips. [1] The EL34 has an octal base (indicated by the '3' in the part number) and is found mainly in the final output stages of audio amplification circuits; it was also designed to be suitable as a series regulator by virtue of its high permissible voltage between ...