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14A4

Information - Help 
ID = 5470
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Triode, vacuum   Universal 
Identical to 14A4
Similar Tubes
Heater different:
  7A4
Other base:
  12J5GT
First Source (s)
24.Oct.1940 : Electron Tube Registration List
Predecessor Tubes 12J5GT  

Base Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 2 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

14a4.png
14A4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †

319_2.png 14A4: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
14a4_techdat01.png
14A4: Sylvania Technical Manual
Peter Hoddow

Usage in Models 1= 1938?? ; 1= 1942? ; 1= 1946? ; 8= 1946 ; 1= 1950??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12

Collection of

 
14a4_img_5505.jpg

14A4
 

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