Antique radios, Old Time Radios
B438
Country:
Netherlands
|
|
Identical to |
B438
= W410
|
Similar
Tubes |
Normally replaceable-slightly different:
2-438
; 4B3_Ultron
; A4_Zenith
; M350S
; M504
; W420
Other base:
B438_UX4
|
First year |
1927
Tube leaflet collection E.Erb Analysis by original leaflets
|
Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
|
Filament |
Vf 4 Volts / If 0.1 Ampere / Direct |
Dimensions (WHD) incl. pins / tip |
45 x 100 x 35 mm / 1.77 x 3.94 x 1.38 inch |
Information source |
- - Manufacturers Literature
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
 |
|
B438: John Koster
John Koster
|
|
|
B438: Telefunken Werkstattbuch
Wolfgang Bauer
|
|
|
B438: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
|
from Just Qvigstad
|
|
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):21
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