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ID = 3846
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Developer: MO Valve Co. Ltd.; GB 
Tube type:  Screen-grid Tetrode   Audio Frequency 
Identical to S22 = B262
Similar Tubes
Other shape (e.g. bulb type):
Normally replaceable-slightly different:
Other characteristic (electr. data):
Different connections:

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 0.18 Ampere / Direct / Specified current DC = (Series working)

GB: S22 is a MOV-Valve (Marconi-Osram Valve); Tetrode 2 Volt.

Text in other languages (may differ)
Information source The Saga of Marconi Osram Valve   p. 148 & 332
History of the British Radio Valve to 1940   p. 148 & 184
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

s22_so.png S22: rtt
Anonymous 10 Collector

Just Qvigstad
S22: osram wireless guide 1931
Giuseppe Antonio Tusini

More ...
Usage in Models 1= 1929 ; 2= 1930 ; 1= 1936?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):4

Collection of



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