Antique radios, Old Time Radios
B442M
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Country:
Netherlands
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| Identical to |
B442M
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| Similar
Tubes |
Normally replaceable-slightly different:
B442S
Other base:
B442
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc)
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.1 Ampere / Direct / Battery = |
| Description |
Die B442 wurde auch mit 5-poligem Sockel gefertigt, wobei der Mittelstift mit der Abschirmung verbunden ist. Beim 4-Stift-Sockel liegt die Abschirmung auf einem Heizfadenende.
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| Information source |
L'ABCDaire des lampes de TSF des jeunes années p. 42a
Babani, International Radio Tube Encyclopaedia p. 54 & 55
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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B442M: W.H.
Wolfgang Holtmann
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Just Qvigstad
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