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ID = 15997
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to LD9
Similar Tubes
Normally replaceable-slightly different:
  HT321 ; OSW2006

Base COAXIAL in general (X..)
Filament Vf 12.6 Volts / If 1.1 Ampere / Half indirect / Specified voltage AC/DC

Luftgekühlte dm-Sendetriode.

Dimensions (WHD)
incl. pins / tip
65 x x 111 mm / 2.56 x x 4.37 inch
Weight 290 g / 10.23 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   RFT-Spezialröhren, 1960

ld9_sock.png LD9: RFT-Spezialröhren 1960
Anonymous 15 Collector

LD9: Telefunken 1944
Robert Schmalstieg

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