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ID = 15999
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Triode, vacuum   SHF/EHF (>3 GHz) 
Identical to LD12
Similar Tubes
Normally replaceable-slightly different:
  HT311 ; HT311S ; OSW2540
Other class quality (otherwise equal):

Base COAXIAL in general (X..) (Codex=sp)
Filament Vf 13 Volts / If 0.8 Ampere / Half indirect
Dimensions (WHD)
incl. pins / tip
45 x 89 x mm / 1.77 x 3.50 x inch
Weight 100 g / 3.53 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   RFT Spezialröhren 1961
LD12: Private collection
Emilio Ciardiello

LD12: Tabu Röhren-Codex, 1948
Anonymous 15 Collector


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