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Q_Marconi

Country:  Great Britain (UK)      Brand:  Marconi's Wireless Telegraph Co. Ltd. 
  Tube type:  Triode, vacuum   Detector 
Tube ID = 28714
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Identical to Q_Marconi
First year   1916 Saga of the Vacuumtube, Tyne page 224

Base No base Side contacts
Filament Vf 5 Volts / If: 0.45 Ampere / -: Direct / -: Battery = /
Description Detector companion to the V24. Low capacity design. 
Dimensions (WHD)
incl. pins / tip
25 x 71 x mm / 0.98 x 2.80 x inch
Weight 11 g / 0.39 oz
Literature British Radio Valves - The Vintage Years, Thrower   

  v24_app_1.png
  Q_Marconi: Thermionic tubes, John Scott-Taggart
Emilio Ciardiello
marconi_q1.jpg
Q_Marconi: Sammlung GJ
Anonymous 544 Collector

 
q_marconi_spec.png
Q_Marconi: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector


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