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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 Vacuumtube, Tyne page 257, 258

Filament Vf 8 Volts / If 2.8 Ampere
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   june 1924
 
roehre_st12_bild_1.jpg
ST12: Eigenes Bild
Anonymous 971 Collector

 
transmittingjune1924.png
ST12: own collection
Peter den Boer


Collection of a member from D

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