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- 08:59, 7 April 2025 LucyWeinberg85 talk contribs created page How Vacuum Tubes Job (Created page with "For over 40 years, Radio Electric Supply has actually provided the world with radio and vacuum cleaner tubes for every possible application. This can be either just a filament covered with a blend of barium and strontium oxides and other compounds, or it can be an "indirectly warmed" cathode, which is simply a nickel tube with a covering of these exact same oxides on its external surface area and a home heating filament inside. <br><br>Whether you require vacuum tubes fo...")