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ID = 62118
Great Britain (UK)
Brand: 362 Valve Co., Ltd. (The ...)
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to SG2_362
Similar Tubes
Heater different:

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Top contact screw type.
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =

This SG2 differs from the Clarion SG2 (SG2_Clarion) in characteristics and filament current.

In 1933 the screen voltage for 4mA anode current and a gm of 4mA/V is stated as 75. In 1934 it is 60 for the same anode current and gain.

Information source Wireless World (The), London (WW, 79)   Nov 1933 and 1934
SG2_362: GG
Gwyn Griffiths


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