Antique radios, Old Time Radios
438
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Country:
United States of America (USA)
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Brand:
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| Tube type: |
Vacuum Pentode Power/Output |
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| Identical to |
438
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| Similar
Tubes |
Normally replaceable-slightly different:
38
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| Base |
UY-Base, 5 Pins (USA, April 1927) (Codex=Hfo)
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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438: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
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Just Qvigstad
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438: own collection
Peter den Boer † 2025
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