Antique radios, Old Time Radios
20J8
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Country:
United States of America (USA)
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| Identical to |
20J8
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| Similar
Tubes |
Other shape (e.g. bulb type):
20J8GM
; 20J8M
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| First Source
(s) |
18.Sep.1939 : Electron Tube Registration List rec. 215
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uao)
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 20 Volts / If 0.15 Ampere / Indirect |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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20J8: Schematic from my documents.
Pier Antonio Aluffi
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20J8: HTS.
Hans-Thomas Schmidt
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Just Qvigstad
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20J8: Manufacturer's Literature
Emilio Ciardiello
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