Antique radios, Old Time Radios
B509
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Country:
Netherlands
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| Identical to |
B509
|
| Similar
Tubes |
Other base:
CX301A
; UX201A
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 5 Volts / If 0.25 Ampere / Direct |
| Description |
This tube probably also made with the American UX base, because of its equivalent.
|
| Information source |
L'ABCDaire des lampes de TSF des jeunes années p. 11
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B509: Fin Stewart
Fin Stewart
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Just Qvigstad
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