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SG215

Information - Help 
ID = 3799
       
Country:
Great Britain (UK)
Brand:
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to SG215
Similar Tubes
Normally replaceable-slightly different:
  B262 ; SG2_Clarion

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.15 Ampere / Direct / Battery =
Description

Im Röhren-Codex sind drei SG215 geführt, mit teils fehlerhaften Daten.
Innerhalb der vier Hersteller und über den Produktionszeitraum variieren die Röhrendaten, was jedoch für den Einsatz im jeweiligen Radio der damaligen Zeit keine gravierenden Auswirkungen hatte.

 
Information source History of the British Radio Valve to 1940   p. 184
Taschenbuch zum Röhren-Codex 1948/49   
History of the British Radio Valve to 1940
 
sg215_039r.jpg
SG215: Collection JR
Jacob Roschy

 
s_2_g_5.gif
SG215: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

 
sg215_215a.png
SG215: own collection
Peter den Boer


from Just Qvigstad

Usage in Models 2= 1929 ; 1= 1930? ; 1= 1930 ; 1= 1932?? ; 7= 1932 ; 1= 1933? ; 2= 1933 ; 6= 1934 ; 1= 1936

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):22


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