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19

Information - Help 
ID = 3224
       
Country:
United States of America (USA)
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Double Triode   Power/Output 
Identical to 19 = 19E = PH19 = NU-19
Similar Tubes
Normally replaceable-slightly different:
  38019
Other base:
  1J6G
First year 1933 Radios von gestern, 2. Auflage
First Source (s)
Jan.1933 : 70 Years of Radiotubes and V.
Successor Tubes 1J6G  
Base 6-Pin-Base U6A, old, USA (Codex=Ko)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.26 Ampere / Direct / Battery =
Description

Stokes (p.77) says "released early in 1933" and gives a reference (p.81): "Radio Craft, New Tube Developments, Jan.1933, p.398"; If an article is printed in January it most probably reports from the near past, i.e. from late 1932! There was an information, then the report had to be written before printing. Stokes conclusion appears to be inaccurate.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 x 103 x 38 mm / x 4.06 x 1.50 inch
Weight 34 g / 1.20 oz
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Tube Lore (II)   p. 26 & 182
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia
valvula19.png
19: Internet
Miguel Angel Trujillo-Rodriguez
463.png 19: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
Just Qvigstad 		19_techdat01.png
19: Sylvania Technical Manual
Peter Hoddow
More ...
Usage in Models 2= 1932 ; 3= 1933?? ; 5= 1933? ; 21= 1933 ; 6= 1934?? ; 3= 1934? ; 92= 1934 ; 15= 1935?? ; 8= 1935? ; 126= 1935 ; 38= 1936?? ; 10= 1936? ; 154= 1936 ; 22= 1937?? ; 17= 1937? ; 98= 1937 ; 31= 1938?? ; 5= 1938? ; 58= 1938 ; 22= 1939?? ; 5= 1939? ; 14= 1939 ; 10= 1940?? ; 4= 1940? ; 7= 1940 ; 9= 1941?? ; 8= 1941? ; 3= 1941 ; 1= 1942?? ; 1= 1942? ; 1= 1944? ; 1= 1946? ; 1= 1947? ; 2= 1950 ; 2= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):805

Collection of

Alexander Hofer (A)
Fin Stewart (AUS)
Michael Gnaedig-Fischer (MEX)
Peter den Boer † 2025 (NL)
John Koster (NL)
Collection of a member from FIN
Tor Steinnes (N)
Hans RODT (D)
Jacob Roschy (D)
 
19_52rm10p.jpg

19
 
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