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Audion Vacuum Tube - History Computer

    https://history-computer.com/the-audion-vacuum-tube/
    The Audion tube was a vacuum tube that could amplify a faint electrical signal into a bigger one. Who invented the Audion Vacuum Tube? The Audion tube, created by De Forest in 1906, detects the presence and amplification of faint radio signals. Where was the Audion vacuum tube invented?

Audion Tube : Innowiki

    https://www.innowiki.org/audion-tube/
    In 1906, Lee de Forest invented the “three-electrode Audion” vacuum tube. The Audion acts as an amplifier, transforming quiet electric signals into loud ones. Originally de Forest wasn’t quite sure if the Audion had any practical application. That quickly changed. Audions efficiency boost voice over telephones, enabling long-distance calls.

De Forest Audion Tube- Paving the Way for Radio in 1906

    http://cedmagic.com/history/deforest-audion.html
    Lee De Forest invented the Audion vacuum tube in 1906, which went on to become the most significant electronics innovation of the first half of the 20th century after its application to radio was understood and perfected. The vacuum tube actually originated with Thomas Edison's invention of the electric light bulb.

Audion Tube · Physical, Electrical, Digital

    https://www.kimon.hosting.nyu.edu/physical-electrical-digital/items/show/1331
    The “Audion” tube was a variation on a detector called a Fleming valve, but de Forest’s patent was considered unique because of a zigzagging wire he called a “grid.” Though the device produced groundbreaking results for sending signals not just point-to-point but to broadcast, de Forest did not actually know how the vacuum tube worked.

Audion | electronics | Britannica

    https://www.britannica.com/technology/Audion
    Audion, elementary form of radio tube developed in 1906 (patented 1907) by Lee De Forest of the United States. It was the first vacuum tube in which a control grid (in the form of a bent wire) was added between the anode plate and the cathode filament.

More history of the vacuum tube: The Audion - acdc audio

    https://www.acdcaudio.net/tubes-history/history-of-the-vacuum-tube-part-three
    He called this device his Audion which he used as a leaky grid detector, not realizing its full potential. It was not until 1911 that the vacuum tube was used as an amplifier. After this discovery people were quick to try to exploit it. De Forest built an amplifier using three Audions and demonstrated it to the telephone company A.T & T.

Lee DE Forest.org

    https://www.leedeforest.org/The_Audion.html
    Lee de Forest invented the three-element vacuum tube which became the basis of all electronic devices. He called it the Audion. In the Nineteenth Century Thomas Edison noticed a blackening on the inside of his burning light bulb. He believed it to be caused by electrons and he named it the “Edison Effect.”

Vacuum packaging - Audion Elektro

    https://www.audion.com/vacuum-packaging/
    Audion Elektro UK Unit 4, Centurion Way Business Park, Alfreton Road, DE21 4AY T: (0)1332 404330 VAT 302127615 Company No 03856331. Audion NL Hogeweyselaan 235 1382 JL Weesp T: +31(0)294-491717 E: [email protected]. VAT: NL803873104B01 Trade reg. Hilversum: 32057820. Audion Elektro GmbH Karl-Kisters-Straße 8 D-47533 Kleve T:+49(0)2821-7330-0 ...

Lee De Forest: Father of Radio and Inventor of the Audion ...

    https://blog.minicircuits.com/lee-de-forest-father-of-radio-and-inventor-of-the-audion/
    De Forest’s Audion consisted of a glass vacuum tube containing three electrodes inside: a cathode (filament), an anode (plate), and a control grid (zigzagging wire).

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