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SSI

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ID = 85054
       
Country:
Germany
Brand: Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München
Tube type:  Space Charge Tetrode   Audio Frequency 
  <1925 very rare. ***
Identical to SSI
Similar Tubes
Other base and data slightly different:
  Siemens-Schottky-Röhre
First year 1917 Saga of the Vacuum Tube, Tyne page 253, 254
Successor Tubes 1917   SSII  

Base EU-Telephone 5-pin (G5K)
Was used by Military and/or Government
Filament Vf 2.5 Volts / If 0.38 Ampere / Direct / Battery =
Description

Die SSI war als Raumladegitterröhre konzipiert, wurde aber gelegentlich auch als Schrimgitter-Tetrode verwendet.

(Das Schirmgitter wurde damals auch Schutznetz genannt.)

 
Information source Saga of the Vacuum Tube, Tyne   

g5k_sockel_tetrode~~3.png SSI: Röhren-Codex
Stefan Müller


Just Qvigstad
ssi_spec~~1.png
SSI: Riepka, Die Röhre, 1926
Anonymous 15 Collector

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screenshot_20220611_135344_gallery.jpg

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