Antique radios, Old Time Radios
GL441
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Country:
United States of America (USA)
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| Identical to |
GL441
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Filament |
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| Description |
S4 (blue) response phototube. 45 μA per lumen at 90V anode voltage.
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| Information source |
Tube Lore (I)
-- Original-techn. papers. Electronics, February 1942
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Just Qvigstad
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line up.
[rmxtube-en]
| Data Compliance |
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