radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

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 / Parallel / series AC/DC
Tube prices 2 Tube prices (visible for members only)
Literature 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 †
 
hytron_14a4.jpg
14A4: O.F.
Otto Frosinn

 
319_2.png
14A4: Telefunken Werkstattbuch
Wolfgang Bauer

 
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


You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg