Antique radios, Old Time Radios

B425

ID = 2474

Country:

Netherlands

Brand:	Philips; Eindhoven (tubes international!); Miniwatt
Tube type:	Triode, vacuum Universal

Identical to

B425

Similar Tubes

Normally replaceable-slightly different:

410W ; DT5

First Source (s)

Apr.1930 : Philips Bulletin

Base	Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament	Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Information source	Taschenbuch zum Röhren-Codex 1948/49

B425: eigene Sammlung HV
Hartmut Völler

B425: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

from Just Qvigstad

Usage in Models

1= 1929 ; 1= 1930? ; 8= 1930 ; 6= 1931 ; 1= 1932??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):17

Collection of Hartmut Völler (D)

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