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ID = 49361
Brand: Heussen, M. & Co; Arnhem
Developer: Heussen, M. & Co; Arnhem 
Tube type:  Transmitting Triode, air cooled 
  <1925 very rare. ***
Identical to Transmitting-Triode

Base Edison big E27 = 27 mm Base on each end.
Filament Direct
Description This is an experimental transmitting triode, used in the Heussen broadcast station, which operated from april 1922 until september 1924. They started to transmit with 10 Watt plate dissipation, which is the expected plate dissipation of this tube. 
Dimensions (WHD)
incl. pins / tip
40 x 175 x 38 mm / 1.57 x 6.89 x 1.50 inch
Weight 131 g / 4.62 oz
Transmitting-Triode: own collection
Peter den Boer


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