National Union 5U4 Tube - Smooth Plates - Hanging Filament - Balanced 120/120
Item History & Price
| Reference Number: Avaluer:7499422 | Type: Vacuum Tube |
| MPN: Does Not Apply | Brand: Unbranded |
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National Union 6b4g Tube Black Plate D Foil Getter 126
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1944 National Union 5u4g Tube Tests Perfect Hanging Filament Black Plate Hc Date
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