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B_BTH

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ID = 28406
       
Country:
Great Britain (UK)
Brand: BTH (B.T.H.), British Thomson-Houston Co, Ltd.
Tube type:  Triode, vacuum   Text 
Identical to B_BTH = G_Moorhead
Similar Tubes
Different maximum ratings:
  R_England ; TM
First year 1918 ? Saga of the Vacuum Tube, Tyne Seite 227

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.72 Ampere / Direct / Battery =
Description

When used as a transmitting valve, the filament got 6 Volt and the anode up to 800 Volts.

 
Dimensions (WHD)
incl. pins / tip
x 118 x 55 mm / x 4.65 x 2.17 inch
Literature British Radio Valves - The Vintage Years, Thrower   Pages 28 & 78
Saga of the Vacuum Tube, Tyne   Pages 227 & 228
 
b_bth_so.png
B_BTH: rtt
Michael Schlör

 

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