Antique radios, Old Time Radios
DW7
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Country:
France
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| Identical to |
DW7
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| Similar
Tubes |
Normally replaceable-slightly different:
E446
; E452T
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| First year |
Aug.1932
Wireless World (The), London (WW, 79) p122
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=C)
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC |
| Information source |
L'ABCDaire des lampes de TSF des jeunes années p. 68b
British Radio Valves - The Classic Years: 1926-1946 Supplement p. 35 (ETA)
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
Collection of
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