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S4V

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ID = 12954
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Screen-grid Tetrode   Audio Frequency 
  Ca. 1925 up to 1945 very rare. ***
Identical to S4V
Similar Tubes
Other base:
  S4V_UY
Successor Tubes S4VA   S4VB  
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Fc) Sidecontact and top contact.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Direct / Specified voltage AC/DC
Description

This tube is normally found with a B5 base and top cap. The B4 version is very rare.

 
Dimensions (WHD)
incl. pins / tip		 x x 60 mm / x x 2.36 inch
Information source Taschenbuch zum Röhren-Codex 1948/49   
e_mullard_s4v_pin.png S4V: colección propia
Jose-Antonio Exposito-Arjona

Just Qvigstad 		uk_mullard_s4v_data.png
S4V: Mfg. data sheet
Jay Kinnard
Usage in Models 1= 1928 ; 4= 1929 ; 3= 1930? ; 2= 1930 ; 1= 1931 ; 1= 1932? ; 2= 1932 ; 1= 1933?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):15

Collection of

Alan Scott Douglas † 16.11.15 (USA)
 
uk_mullard_s4v.jpg

 
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