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R224

Information - Help 
ID = 11589
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Double Pentode   Power/Output 
Identical to R224
Similar Tubes
Heater different:
  R204_RT
Multiple differences or of other kind:
  ELL1

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ue)
Filament Vf 6.3 Volts / If 0.4 Ampere / Indirect / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
r224_970rm.jpg
R224: Collection JR
Jacob Roschy

 
r224_so.png
R224: rtt
Michael Schlör

 

from Just Qvigstad


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