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ID = 11764
Brand: M.P. Denmark
Tube type:  Vacuum Pentode   Power/Output 
Identical to UP20
Similar Tubes
Normally replaceable-slightly different:
  B2043 ; RENS1823d
Other base:

Base Europe 5-Pin , B5 + side contact
Was used by Radio/TV-reception etc.
Filament Vf 20 Volts / If 0.18 Ampere / Indirect / Specified current DC = (Series working)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

13base.png UP20: own collection
Peter den Boer

Just Qvigstad
UP20: own collection
Peter den Boer


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