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7B5

Information - Help 
ID = 3262
       
Country:
United States of America (USA)
Brand:
Tube type:  Vacuum Pentode   Power/Output 
Identical to 7B5 = CV880
Similar Tubes
Other shape (e.g. bulb type):
  7B5LT
Normally replaceable-slightly different:
  7B5E ; CV881
Other base:
  41 ; 6AR5 ; 6K6GT
First Source (s)
16.Feb.1939 : Electron Tube Registration List
Predecessor Tubes 6K6GT   6K6G   41  
Successor Tubes 6AR5  
Base Loctal-8, B8G (Sylvania, 1938) (Codex=Wdo)
Filament Vf 6.3 Volts / If 0.4 Ampere / Indirect / Specified voltage AC/DC
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
7b5.png
7B5: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector
355_2.png 7B5: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		7b5_techdat01.png
7B5: Sylvania Technical Manual
Peter Hoddow
More ...
Usage in Models 2= 1939?? ; 13= 1939 ; 1= 1940? ; 23= 1940 ; 2= 1941? ; 18= 1941 ; 5= 1945? ; 1= 1945 ; 1= 1946? ; 4= 1946 ; 10= 1947 ; 3= 1948?? ; 1= 1948? ; 21= 1948 ; 7= 1949? ; 16= 1949 ; 4= 1950?? ; 6= 1950? ; 3= 1951? ; 1= 1952?? ; 1= 1953?? ; 1= 1953 ; 1= 1955?? ; 2= 1959? ; 1= 1960?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):148

Collection of

Jürgen Bauch (D)
David Erali (USA)
Tor Steinnes (N)
Collection of a member from FIN
Geri Meier (CH)
Valery Gromov (RUS)
Tomasz Szczesniak (PL)
Aldo Patriarca (CH)
 
7b5philco_klein.jpg

7B5
 
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