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- 11:20, 7 April 2025 DickPotter19 talk contribs created page Shipping Vacuum Cleaner Tubes Vacuum Cleaner Tubes Needed 5 000 Vaccuum Tubes In Supply. (Created page with "For over 40 years, Radio Electric Supply has supplied the globe with radio and vacuum tubes for every feasible application. This can be either simply a filament covered with a mix of barium and strontium oxides and various other compounds, or it can be an "indirectly heated" cathode, which is just a nickel tube with a finishing of these same oxides on its outer surface and a home heating filament inside. <br><br>We Stock over 7,800 various radio and and vacuum tubes. Als...")