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6X4 Info
Country:  United States of America (USA)      Brand:  Common type USA 
  Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Tube ID = 3258
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Identical to 6X4 = 6Z31 = EZ90 = CV493
Similar Tubes 6X5 (other base)   6X5GT (other base)   6202 (different maximum ratings)   6063 (other class quality (otherw. equal))   EZ40A (other base)   12X4 (Heater different)   6X4WA (Multiple differences or of other kind)   6X4W (other class quality (otherw. equal))   6BX4 (different maximum ratings)   GZ41 (Other base and other base diagram)   U78 (can normally be replaced - small diff'ce)  
First Source (s) 20.Feb.1946 : Electron Tube Registration List
Predecessor Tubes 6X5   6X5GT   6X5G   7Y4  
Successor Tubes 6BX4   EZ90   5993  
Base Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Za)
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel, (AC/DC) / If: 0.6 Ampere / Vf 6.3 Volts /
Tube prices 0 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   

  6x4.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
6x4_ra.jpg
Collection JR
Jacob Roschy
 
6x4basediagram.png
6X4 GE Data Sheet 5-58
Vitor Oliveira
 
6x4_techdat01.png
RCA Tube Manual
Peter Hoddow
Usage in Models   1= 1939?? ; 1= 1940?? ; 1= 1940 ; 2= 1945?? ; 1= 1945? ; 1= 1946?? ; 1= 1946? ; 1= 1947? ; 5= 1948?? ; 1= 1948? ; 10= 1948 ; 7= 1949?? ; 12= 1949? ; 41= 1949 ; 18= 1950?? ; 12= 1950? ; 45= 1950 ; 10= 1951?? ; 55= 1951? ; 52= 1951 ; 21= 1952?? ; 27= 1952? ; 47= 1952 ; 20= 1953?? ; 16= 1953? ; 32= 1953 ; 10= 1954?? ; 30= 1954? ; 37= 1954 ; 30= 1955?? ; 16= 1955? ; 37= 1955 ; 9= 1956?? ; 9= 1956? ; 17= 1956 ; 4= 1957?? ;
Number of Models with this tube   799
No further Information for

6X4    

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