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813

Information - Help 
ID = 11886
       
Country:
United States of America (USA)
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Beam Power Tube   Power/Output 
Identical to 813 = QB2/250 = CV26 = GL813 = 4T250A0 = 110E/44 = QY2-100 = 4T250A1 = ML-813 = 4-T-100 = VT-144 = 5C/100A
Similar Tubes
Normally replaceable-slightly different:
  C143 ; FU-13
Successor Tubes ГК-71  
Base 7-Pin-Base U7G = Giant, old, USA (Codex=Mrb) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 5 Ampere / Direct
Description

Also made in Italy by Fivre.

 
Dimensions (WHD)
incl. pins / tip		 x 192 x 65 mm / x 7.56 x 2.56 inch
Tube prices 4 Tube prices (visible for members only)
Information source Tube Lore (II)   p. 77
Babani, International Radio Tube Encyclopaedia   P. 232 & 233
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
813_pa.gif
813: Internet
Wesselin Tzenow † 25.5.10     More ...
813_so.png 813: ARRL Handbook 1972
Anonymous 10 Collector
More ...
Just Qvigstad 		813_qb2250_spec.png
813: Valvo,Senderöhren, 1983
Anonymous 15 Collector
More ...
Usage in Models 1= 1937 ; 2= 1940? ; 1= 1942 ; 1= 1943? ; 1= 1945 ; 1= 1948?? ; 1= 1950?? ; 1= 1950? ; 1= 1954? ; 1= 1955? ; 1= 1957?? ; 1= 1959 ; 1= 1978
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):14

Collection of

Alexander Hofer (A)
Gerhard Heigl (A)
Jay Vonderhey (USA)
George Papaiz (CDN)
Bruce Morgenstern (CDN)
Fin Stewart (AUS)
Michael Gnaedig-Fischer (MEX)
Jose Luis Villabona Horreo (E)
Pedro Prieto-Castro (E)
Antonio Bordini (I)
Emilio Ciardiello (I)
Carlo La Perna (I)
Georges Werts (B)
Antonio Rabitti (BR)
Collection of a member from FIN
Danko Tkalec (HR)
Carlos A. Pieroni-García (ROU)
Valery Gromov (RUS)
Stig Comstedt (S)
Rudolf Osterkamp (D)
Otto Frosinn (D)
Karlheinz Fischer (D)
Bertram Schnase (D)
Klaus Rüdiger (D)
Götz Linss † 27.06.21 (D)
Ottmar Rollmann (D)
 
813_picture.png

813
 

Variants

This version does not have graphite plate but has a rectangular metal sheet plate and an aluminum socket with ceramic insert. Weigh is 220 gram.
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