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7B7

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ID = 2855
       
Country:
United States of America (USA)
Brand:
Developer: Philco, Philadelphia Stg. Batt. Co.; USA 
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 7B7
Similar Tubes
Normally replaceable-slightly different:
  7B7E
Other class quality (otherwise equal):
  CV522
Other base:
  6SS7 ; 6SS7GT
First Source (s)
09.Dec.1938 : Electron Tube Registration List 152
Predecessor Tubes 6S7G  
Successor Tubes 6BJ6  
Base Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
7b7.png
7B7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector
358_1.png 7B7: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
Just Qvigstad 		7b7_techdat01.png
7B7: Sylvania Technical Manual
Peter Hoddow
More ...
Usage in Models 13= 1938 ; 1= 1939?? ; 7= 1939? ; 87= 1939 ; 3= 1940?? ; 6= 1940? ; 77= 1940 ; 1= 1941?? ; 3= 1941? ; 75= 1941 ; 1= 1942?? ; 3= 1942? ; 5= 1942 ; 1= 1945?? ; 4= 1945? ; 2= 1945 ; 4= 1946?? ; 9= 1946? ; 36= 1946 ; 4= 1947?? ; 7= 1947? ; 26= 1947 ; 2= 1948?? ; 4= 1948? ; 46= 1948 ; 4= 1949?? ; 13= 1949? ; 36= 1949 ; 11= 1950?? ; 5= 1950? ; 36= 1950 ; 24= 1951? ; 26= 1951 ; 3= 1952?? ; 3= 1952? ; 17= 1952 ; 2= 1953?? ; 4= 1953? ; 15= 1953 ; 1= 1954?? ; 1= 1954? ; 12= 1954 ; 3= 1955?? ; 3= 1955? ; 3= 1955 ; 1= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):650

Collection of

Museum Roggenhofer (A)
Wolfgang Bauer (A)
Robert Gillespie (USA)
Timothy Koceja (USA)
David Erali (USA)
Bruce Morgenstern (CDN)
George Papaiz (CDN)
Michael Gnaedig-Fischer (MEX)
Aldo Patriarca (CH)
Bekir Yurdakul (F)
Howard Craven (GB)
Justo Puertas-Paule (E)
Georges Werts (B)
Collection of a member from FIN
Tomasz Szczesniak (PL)
Karl - Heinz Bossan (D)
Peter Pfeiffer (D)
 
7b7~~3.jpg

7B7
 
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