Antique radios, Old Time Radios
U33
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Country:
Great Britain (UK)
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| Identical to |
U33
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
Top contact with a cap.
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| Filament |
Vf 2 Volts / If 1 Ampere / Direct |
| Information source |
- - Manufacturers Literature Ratheiser, Röhrenhandbuch, 1948
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Just Qvigstad
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U33: own collection
Peter den Boer
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Collection of
Collection of a member from FIN |
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