Valvo
Brand on Tube | Valvo |
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Real Tube Manufacturer | Philips |
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Country | Holland |
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Etched code on Tube | 8f6 ⊿4G4 |
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Factory Code | ⊿ - Philips, Heerlen |
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Year | 1964 |
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Tip Shape | Pinched Tip |
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Glass Color | Clear Glass |
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Getter | D-Getter |
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Plate Look | Mesh |
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Plate Color | Shiny Gray |
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More tubes manufactured by Philips