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6J4

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ID = 4938
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Triode, vacuum   UHF 
Identical to 6J4 = 6С2П = A2209 = TM12
Similar Tubes
Other shape (e.g. bulb type):
  6J4S
Normally replaceable-slightly different:
  8532 ; 8532W ; CV1763
Other class quality (otherwise equal):
  6J4W ; 6J4WA ; 6J4WB ; CV5311 ; M8248
Differences not known by us:
  6J4H
First Source (s)
06.Mar.1944 : Electron Tube Registration List 371
Successor Tubes 7245A   7245  

Base Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Zi)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.4 Ampere / Indirect / Specified voltage AC/DC
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

6j4.png
6J4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector

6j4_so.png 6J4: ARRL Handbook 1972
Anonymous 10 Collector

More ...

Just Qvigstad
6j4_techdat01.png
6J4: SEL Handbuch 1964
Peter Hoddow

More ...
Usage in Models 1= 1943?? ; 1= 1951 ; 1= 1952?? ; 1= 1955?? ; 1= 1958?? ; 1= 1960??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6

Collection of

 
6j4_a.jpg

6J4
 

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