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2. Vacuum-tube computer - Wikipedia

   en.wikipedia.org/wiki/Vacuum-tube_computer

   A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical aids to computation goes back centuries, if not millennia, the history of vacuum tube computers is confined to the middle of the 20th century. Lee De Forest invented the triode in 1906.

3. List of vacuum tubes - Wikipedia

   en.wikipedia.org/wiki/List_of_vacuum_tubes

   YD1336 – 1.8 kW, Air-cooled, UHF power triode. YD1342 – 30 MHz, 530 kW, Water-cooled RF power triode. YD1352S (8867, DX334) – 5 MHz, 2 kW, Water-cooled Neotron, a gridless field-effect tube where a magnetically focused electron beam is modulated by varying the voltage of a gate electrode surrounding it.

4. 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.

5. Walmart is having a major sale on Dyson vacuums - AOL

   www.aol.com/lifestyle/theres-a-major-dyson...

   Dyson V15 Detect Absolute. $600 $750 Save $150. Type: Cordless stick. Color options: Gold. Weight: 6.83 pounds. Yes, the Dyson V15 Detect Absolute is the priciest vacuum on the list, but it comes ...

6. Take $250 off This Dyson Vacuum During Walmart's Cyber ... - AOL

   www.aol.com/250-off-dyson-vacuum-during...

   Walmart's Cyber Monday sale is going strong, with live savings on Dyson vacuums, Samsung TVs, toys and more. Shop the best Walmart Cyber Monday deals of 2023. Take $250 off This Dyson Vacuum ...

7. List of Mullard–Philips vacuum tubes - Wikipedia

   en.wikipedia.org/wiki/List_of_Mullard–Philips...

   ECL113 – Triode - AF power pentode, Rimlock base. ECL200 – Triode - CRT drive power pentode, decal base, PCL200 with a different heater. ECL802 – Triode - Power pentode for use as vertical oscillator and output tube in TV receivers. ECL805 – Triode - Power pentode with separate cathodes, PCL805 with a different heater.

8. The Eureka vacuum that Walmart shoppers say is ‘like Dyson ...

   www.aol.com/lifestyle/eureka-vacuum-walmart...

   Hoover WindTunnel XL Pet Bagless Upright Vacuum, $59 (was $119), walmart.com Anker eufy RoboVac G30 Verge, $149 (was $350), walmart.com Shark ION™ Robot Vacuum, $144 (was $199), walmart.com

9. Vacuum tube - Wikipedia

   en.wikipedia.org/wiki/Vacuum_tube

   A vacuum tube, electron tube, [ 1][ 2][ 3] 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. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a ...