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L425D

Country:  Germany      Brand:  Valvo Radioröhrenfabrik GmbH; Hamburg 
  Tube type:  Vacuum Pentode   Power/Output 
Tube ID = 11318
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Identical to L425D = PP430 = C453 = C443
Similar Tubes Normally replaceable-slightly different:
 DW3; P425_Triotron; PT4; TW425
First year   1929 Tube leaflet collection E.Erb Analysis by original leaflets
Successor Tubes L427D  

Base Europe 5-Pin (O5A, B5) (Codex=Foo)
Filament Vf 4 Volts / If: 0.25 Ampere / -: Direct / -: Parallel, (AC/DC) /
Literature Taschenbuch zum Röhren-Codex 1948/49   

l425d_01.jpg
L425D: Collection TL
Thomas Lebeth

 
4_18.png
L425D: Telefunken Werkstattbuch
Wolfgang Bauer

 
l425d_spec.png
L425D: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models   1= 1931
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   1

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