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- 10:59, 7 April 2025 ReganGreener54 talk contribs created page 5 000 Various Tubes In Stock (Created page with "For over 40 years, Radio Electric Supply has actually supplied the globe with radio and vacuum tubes for every single possible 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 warmed" cathode, which is just a nickel tube with a coating of these same oxides on its outer surface and a home heating filament inside. <br><br>We Stock over 7,800 different radio and and vacuum cl...")