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3S4

Country: Worldwide Brand: Common type Worldwide tube/semicond. Tube type:  Vacuum Pentode   Power/Output  Identical to 3S4 = DL92 = VT-174 = N17 = 2P2 = CV820 = CV484 Similar Tubes Heater different:   3S4T First year 22.Nov.1940 Electron Tube Registration List Base Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Zzo) Was used by Radio/TV-reception etc. Filament Vf 2.8 Volts / If 0.05 Ampere / Direct / Battery = Tube prices 5 Tube prices (visible for members only) Information source Essential Characteristics, GE 1973    Taschenbuch zum Röhren-Codex 1948/49    3S4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus † 3S4: Telefunken Werkstattbuch Wolfgang Bauer More ... Just Qvigstad 3S4: Sylvania Technical Manual Peter Hoddow More ... Usage in Models 2= 1941? ; 20= 1941 ; 1= 1942?? ; 8= 1942? ; 7= 1942 ; 1= 1943 ; 1= 1944? ; 2= 1945?? ; 2= 1945 ; 5= 1946? ; 28= 1946 ; 3= 1947?? ; 8= 1947? ; 71= 1947 ; 8= 1948?? ; 13= 1948? ; 77= 1948 ; 4= 1949?? ; 7= 1949? ; 59= 1949 ; 35= 1950?? ; 8= 1950? ; 44= 1950 ; 13= 1951?? ; 11= 1951? ; 64= 1951 ; 12= 1952?? ; 13= 1952? ; 13= 1952 ; 7= 1953?? ; 8= 1953? ; 21= 1953 ; 7= 1954?? ; 12= 1954? ; 16= 1954 ; 31= 1955?? ; 15= 1955? ; 14= 1955 ; 5= 1956?? ; 8= 1956? ; 4= 1956 ; 1= 1957?? ; 5= 1957? ; 2= 1957 ; 3= 1958?? ; 1= 1958? ; 4= 1958 ; 3= 1959?? ; 1= 1959? ; 9= 1959 ; 2= 1960?? ; 1= 1960 ; 1= 1961? ; 1= 1999? ; 1= 9999 Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):723 Collection of Christian Schaufelberger (CH) John Koster (NL) Mauro Minghetti (I) Keith Ellison (AUS) Aldo Patriarca (CH) Toni Kick (D) Jürgen Tiedmann (D) Stig Comstedt (S) George Papaiz (CDN) David Erali (USA) Peter Pfeiffer (D) John Hupse † 28.9.20 (NL) Frank Cuffe (IRL) Valery Gromov (RUS) Gerhard Heigl (A) Georges Werts (B) Heinz Schmidt (D) Oskar Elm (D) Collection of a member from FIN

3S4

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Hits: 1184     Replies: 0 Filamento della 3S4
Antonio Maida 19.Apr.20	1 Filamento della 3S4  Nella scheda della valvola, i dati sul fila mento non sono esatti, infatti con 2,8 Volt, ciè con le due sezioni in serie, la corrente è di 50 mA . e non di 100 mA. I 100 mA si hanno quando le due sezioni sono in parallelo ed alimemtati a 1,4 Volt.

 

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