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3Q4

Information - Help 
ID = 1454
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   Power/Output 
Identical to 3Q4 = DL95 = VT-264 = CV818
Similar Tubes
Different connections:
  DL94
First Source (s)
01.Apr.1941 : Electron Tube Registration List

Base Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Zzo)
Filament Vf 2.8 Volts / If 0.05 Ampere / Direct / Battery =
Description Heizfäden parallel: 1,4V; 0,1A. 
Tube prices 5 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  3q4.png
  3Q4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
3q4~~1.jpeg
3Q4: From my collection.
Niclas Pettersson

 
7ba_res.png
3Q4
Emilio Ciardiello

 
3q4_techdat01.png
3Q4: Sylvania Technical Manual
Peter Hoddow


Usage in Models 1= 1941?? ; 1= 1941 ; 1= 1942 ; 1= 1944? ; 1= 1944 ; 1= 1945?? ; 1= 1945 ; 1= 1946?? ; 1= 1946? ; 27= 1946 ; 2= 1947?? ; 3= 1947? ; 45= 1947 ; 3= 1948?? ; 7= 1948? ; 17= 1948 ; 2= 1949?? ; 11= 1949 ; 10= 1950?? ; 4= 1950? ; 2= 1950 ; 2= 1951?? ; 2= 1951? ; 16= 1951 ; 6= 1952?? ; 10= 1952 ; 4= 1953?? ; 2= 1953? ; 13= 1953 ; 3= 1954?? ; 3= 1954? ; 16= 1954 ; 1= 1955?? ; 3= 1955? ; 19= 1955 ; 1= 1956?? ; 2= 1956? ; 8= 1956 ; 1= 1957? ; 1= 1957 ; 1= 1959 ; 1= 1960? ; 1= 1961 ; 1= 1969??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):259


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