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RE20

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ID = 12894
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Developer: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH 
Tube type:  Space Charge Tetrode 
  <1925 very rare. ***
Identical to RE20
Base EU-Telephone 5-pin (G5K)
Filament Vf 2.7 Volts / If 0.5 Ampere / Direct / Battery =
Information source Telefunken-Zeitung   Nr.23
Saga of the Vacuum Tube, Tyne   
rg_umg_2_2.png
RE20: W.H.
Wolfgang Holtmann
5pol_sock_3.png RE20: W.H.
Wolfgang Holtmann

Just Qvigstad
 
re20.jpg

 
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