Antique radios, Old Time Radios
1934
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Country:
Netherlands
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Brand:
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| Tube type: |
Current Regulator, Iron in Hydrogen Power-supply |
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| Identical to |
1934
= 251_Ballast
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| First Source
(s) |
22.Nov.1935 : Wireless World (The), London (WW, 79)
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=E)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
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| Description |
60...180V; 250mA.
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Dimensions (WHD)
incl. pins / tip |
50 x 152 x 35 mm / 1.97 x 5.98 x 1.38 inch |
| Information source |
- - Manufacturers Literature Philips Type Number Book April 1932
Babani, International Radio Tube Encyclopaedia p. 314
Ballast Tube Handbook, The
Taschenbuch zum Röhren-Codex 1948/49
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Just Qvigstad
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Collection of
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| Data Compliance |
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