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ST12

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ID = 16417
       
Country:
Germany
Brand: TeKaDe (TKD), Süddeutsche Telefon-Apparate- Kabel- und Drahtwerke; Nürnberg
Tube type:  Triode, vacuum 
  <1925 very rare. ***
Identical to ST12
First year 1918 Saga of the Vacuum Tube, Tyne page 257, 258

Filament Vf 8 Volts / If 2.8 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   june 1924

transmittingjune1924.png
ST12: own collection
Peter den Boer

Collection of

Collection of a member from D
 
screenshot_20230501_204422_gallery.jpg

ST12
 

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