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49

Information - Help 
ID = 3580
       
Country:
United States of America (USA)
Brand:
Tube type:  Double Grid Power Amplifier   Power/Output 
Identical to 49 = ER49 = CV2532 = NU-49
Similar Tubes
Normally replaceable-slightly different:
  T-49
First year 1932 Radios von gestern, 2. Auflage
First Source (s)
Sep.1932 : 70 Years of Radiotubes and V.
Base UY-Base, 5 Pins (USA, April 1927) (Codex=Ho)
Filament Vf 2 Volts / If 0.12 Ampere / Direct / Battery =
Description Siehe auch: Zero-Bias- und Triple-Twin- Röhren 
Tube prices 4 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
a246_so~~3.png 49: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad 		49_techdat01.png
49: Cunningham Radiotron Manual
Peter Hoddow
More ...
Usage in Models 1= 1932?? ; 3= 1932 ; 3= 1933?? ; 5= 1933 ; 2= 1934 ; 6= 1935 ; 1= 1936?? ; 13= 1936 ; 20= 1937 ; 2= 1938?? ; 11= 1938 ; 2= 1939? ; 2= 1939 ; 1= 1940 ; 3= 1941 ; 2= 1942? ; 1= 1942
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):78

Collection of

Karlheinz Fischer (D)
Klaus Rüdiger (D)
George Papaiz (CDN)
Robert Gillespie (USA)
Hans-Jürgen Huster (D)
Patrice Follet (F)
 
20221105_173705.jpg

49
 
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