Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 28788
Brand: Siemens (& Halske, -Schuckert Werke SSW, Electrogeräte); Berlin, München
Tube type:  Screen-grid Tetrode   Audio Frequency 
  <1925 very rare. ***
Identical to SSIII = 114
First year 1917 Saga of the Vacuum Tube, Tyne page 253, 254
Predecessor Tubes SSII  

Base EU-Telephone 5-pin (G5K)
Was used by Military and/or Government
Filament Vf 3.2 Volts / If 0.55 Ampere / Direct / Battery =

100fache Verstärkung.
Das Schirmgitter -zwischen Steuergitter und Anode- soll die unerwünschte Anodenrückwirkung reduzieren. Es wurde damals Schutznetz genannt.

Information source Saga of the Vacuum Tube, Tyne   

Just Qvigstad
SSIII: Riepka, Die Röhre, 1926
Anonymous 15 Collector

Collection of

Collection of a member from D


You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]

Data Compliance More Information