Antique radios, Old Time Radios
FW4/500
|
Country:
Great Britain (UK)
|
|
| Identical to |
FW4/500
= NU12
= 4/100BU
|
| Similar
Tubes |
Other characteristic (electr. data):
CV31
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
|
| Filament |
Vf 4 Volts / If 3 Ampere / Direct |
| Description |
Mullard etch code 1130
|
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
 |
|
FW4/500: own tube collection
Hannu Alho
|
| |
|
FW4/500: Telefunken Werkstattbuch
Wolfgang Bauer
|
| |
|
FW4/500: Mullard-original papers
Bernd Staginnus
|
from Just Qvigstad
|
|
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5
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