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1LB4

Information - Help 
ID = 2811
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   Power/Output 
Identical to 1LB4 = CV776
First Source (s)
14.Sep.1939 : Electron Tube Registration List

Base Loctal-8, B8G (Sylvania, 1938) (Codex=Woo)
Filament Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery =
Tube prices 3 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  1lb4.png
  1LB4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
1lb4_klein_1.jpg
1LB4
Geri Meier

 
494_1.png
1LB4: Telefunken Werkstattbuch
Wolfgang Bauer

 
1lb4_techdat01.png
1LB4: Sylvania Technical Manual
Peter Hoddow


Usage in Models 1= 1939 ; 1= 1940?? ; 8= 1940 ; 12= 1941 ; 5= 1942 ; 1= 1943 ; 1= 1945? ; 2= 1946? ; 19= 1946 ; 1= 1947?? ; 3= 1947? ; 6= 1947 ; 6= 1948?? ; 2= 1948? ; 22= 1948 ; 2= 1949?? ; 1= 1949? ; 6= 1949 ; 1= 1950?? ; 2= 1950? ; 1= 1950 ; 1= 1952?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):104


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