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D9

Information - Help 
ID = 15725
       
Country:
France
Brand: Grammont (Radiofotos, Fotos); Paris, Malakoff
Tube type:  Triode, vacuum   Power/Output 
Identical to D9 = RE134
Similar Tubes
Normally replaceable-slightly different:
  B406 ; DY604 ; L414 ; P410 ; PM4X
First Source (s)
1926 : Saga of the Vacuumtube, Tyne p.403

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.12 Ampere / Direct / Battery =
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   2-9-1933
 
grammont_d9_bild1.jpg
D9: Aus meiner Sammlung
Rudolf Osterkamp

 
1_191.png
D9: Telefunken Werkstattbuch
Wolfgang Bauer

 
miniwattsmall2_3.png
D9: own collection
Peter den Boer


Usage in Models 1= 1927?? ; 1= 1927

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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