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Xtraudion

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ID = 30889
       
Country:
Great Britain (UK)
Brand: Economic Electric; London
Tube type:  Triode, vacuum   Universal 
Identical to Xtraudion
First Source (s)
1922 : Saga of the Vacuum Tube, Tyne p.387
1922 : British Radio Valves - The Vintage Years: 1904-1925 4,41

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.5 Ampere / Direct / Battery =
Description

Bright emitter. By 1924 supplanted by dull emitter Dextraudions.

 
Dimensions (WHD)
incl. pins / tip
x 91 x 32 mm / x 3.58 x 1.26 inch
Weight 36 g / 1.27 oz

b4_base_pins~~29.png Xtraudion: Fin Stewart
Fin Stewart


Just Qvigstad
xtraudion_daten.png
Xtraudion: Wireless World Nov. 1923
Gerhard Eisenbarth

Collection of

 
screenshot_20211102_063902_gallery.jpg

Xtraudion
 

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