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5R4G

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ID = 4523
       
 
   
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 5R4G
Similar Tubes
Other shape (e.g. bulb type):
  5R4GA ; 5R4GB ; 5R4GY
Normally replaceable-slightly different:
  274B
Different maximum ratings:
  ER274B
Multiple differences or of other kind:
  AV-5R4GY
Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 5 Volts / If 2 Ampere / Direct
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
5r4g_sockel.png 5R4G: Essential characteristics
Peter Hoddow
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Just Qvigstad
Usage in Models 3= 1946 ; 2= 1947 ; 1= 1948 ; 1= 1949 ; 2= 1950?? ; 1= 1950 ; 1= 1957 ; 1= 1959 ; 1= 1960??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13

Collection of

Michael Gnaedig-Fischer (MEX)
Collection of a member from D
Jacob Roschy (D)
Karlheinz Fischer (D)
Joe Reda (USA)
 
5r4g_r.jpg

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