Antique radios, Old Time Radios
KF7_4pin
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Country:
Germany
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| Identical to |
KF7_4pin
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| Similar
Tubes |
Other base:
KF4
; KF7
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.05 Ampere / Direct / Battery = |
| Information source |
-- Collector info (Sammler)
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Just Qvigstad
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