Antique radios, Old Time Radios
L11
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Country:
Great Britain (UK)
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| Identical to |
L11
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| Similar
Tubes |
Other characteristic (electr. data):
H11
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| Base |
SPECIAL TUBEBASE in general
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 1 Volts / If 0.1 Ampere / Direct |
| Description |
Miniature tube first made in 1934. For use in hearing aids and small portable radios.
Va <100. Typically:- Va=45 Ra, 12,500 ohms Gm 0.4mA/V.
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Dimensions (WHD)
incl. pins / tip |
x 33 x 18 mm / x 1.30 x 0.71 inch |
| Information source |
The Saga of Marconi Osram Valve p. 249, 250 & 338
History of the British Radio Valve to 1940 p. 141 & 205
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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L11: Fin Stewart
Fin Stewart
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