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U4K

Information - Help 
ID = 16499
       
Country:
Denmark
Brand: M.P. Denmark
Tube type:  Triode, vacuum   Power/Output 
Identical to U4K
Similar Tubes
Normally replaceable-slightly different:
  TC05/25

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 2 Ampere / Direct / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
 
1base~~3.png
U4K: own collection
Peter den Boer

 
direct_heated~~8.png
U4K: own collection
Peter den Boer


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