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- 14:10, 8 April 2025 WillyIrish0455 talk contribs created page Delivering Vacuum Tubes Vacuum Cleaner Tubes Needed 5 000 Vaccuum Tubes In Stock. (Created page with "For over 40 years, Radio Electric Supply has actually provided the globe with radio and vacuum tubes for every feasible application. This can be either just a filament covered with a blend of barium and strontium oxides and other materials, or it can be an "indirectly heated" cathode, which is just a nickel tube with a layer of these exact same oxides on its outer surface area and a heating filament inside. <br><br>We Supply over 7,800 different radio and and vacuum tube...")