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41

Information - Help 
ID = 2968
       
Country:
United States of America (USA)
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Vacuum Pentode   Power/Output 
Identical to 41 = ER41 = VT-48 = PH41 = PA = NU-41
Similar Tubes
Other shape (e.g. bulb type):
  41S
Normally replaceable-slightly different:
  38041 ; 41E
Other class quality (otherwise equal):
  CV608
Other base:
  6AR5 ; 6K6G ; 6K6GT ; 7B5 ; EL1
Other base and other heater:
  EL2
Multiple differences or of other kind:
  293A_WE
First year Sep.1932 -- Collector info (Sammler) Backed up by >20 models.
First Source (s)
1933 : The AWA Journal Vol. #7
Predecessor Tubes 38   89   PA  
Successor Tubes 6K6G   6AR5   6K6GT   EL2   EL1   7B5  

Base 6-Pin-Base U6A, old, USA (Codex=Kdo)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.4 Ampere / Indirect / Specified voltage AC/DC
Description

* RMA/JEDEC register record available by courtesy of TCA* - This tube was already listed by several manufacturers when RMA started its standardization in 1934. In order to characterize popular receiving types, manufacturers were asked to supply average characteristics as measured on production lots. Here are the filled answer forms supplied by Radio Valve Co., Raytheon, Sparton, Triad, Tung Sol, Ken Rad, Hytron and Arcturus. Full record is downloadable here.

 
Dimensions (WHD)
incl. pins / tip
x 106 x 39 mm / x 4.17 x 1.54 inch
Weight 42 g / 1.48 oz
Tube prices 2 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Tube Lore (II)   p. 27
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren

41.png
41: Courtesy Bureau Belper (De Muiderkring, Bussum)
Anonymous 10 Collector

470_2.png 41: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
41_techdat01.png
41: Sylvania Technical Manual
Peter Hoddow

More ...
Usage in Models 1= 1932?? ; 5= 1932? ; 27= 1932 ; 20= 1933?? ; 55= 1933? ; 91= 1933 ; 28= 1934?? ; 45= 1934? ; 176= 1934 ; 32= 1935?? ; 52= 1935? ; 170= 1935 ; 32= 1936?? ; 60= 1936? ; 155= 1936 ; 41= 1937?? ; 45= 1937? ; 267= 1937 ; 49= 1938?? ; 41= 1938? ; 201= 1938 ; 55= 1939?? ; 43= 1939? ; 87= 1939 ; 43= 1940?? ; 22= 1940? ; 52= 1940 ; 28= 1941?? ; 7= 1941? ; 13= 1941 ; 20= 1942?? ; 9= 1942? ; 2= 1942 ; 1= 1944? ; 1= 1945 ; 1= 1946?? ; 8= 1947?? ; 2= 1948?? ; 1= 1949?? ; 1= 1950?? ; 1= 1951 ; 1= 1954 ; 5= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1996

Collection of


Documents about this component
  RMA qualification record for tube types 76, 77, 78, 6C6, 6D6, 75, 41, 42, 2A5, 85, 6F7, 80, 84 and 6A7. 1569 KB
 
tung_sol_41_front.jpg

41
 

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