Antique radios, Old Time Radios
SR4
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Country:
Switzerland
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| Identical to |
SR4
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| Base |
Wires
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| Filament |
--/-- |
Dimensions (WHD)
incl. pins / tip |
13 x 44 x mm / 0.51 x 1.73 x inch |
| Information source |
-- Original-techn. papers.
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SR4: Franzis-Röhren-Taschentabelle
Alexander Küffer
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SR4: Datenblatt
Alexander Küffer
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Collection of
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