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1U4

Information - Help 
ID = 2627
       
Country:
United States of America (USA)
Brand:
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 1U4 = DF904 = DT153
Similar Tubes
Normally replaceable-slightly different:
  5910
First Source (s)
Aug.1945 : Electron Tube Registration List
Base Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Zoo)
Filament Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery =
Tube prices 6 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  1u4.png
  1U4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
1u4_rca_1.jpg
1U4: Eigene Sammlung
Aldo Patriarca
 
1u4.png
1U4: Prüfkarte Röhrenprüfgerät W 18N
Jörg Kulbe
 
1u4.png
1U4: Valvulas de recepción manual RC-20
Miguel Angel Trujillo-Rodriguez

from Just Qvigstad
Usage in Models 1= 1946? ; 7= 1946 ; 3= 1947?? ; 5= 1947? ; 38= 1947 ; 6= 1948?? ; 21= 1948? ; 61= 1948 ; 4= 1949?? ; 6= 1949? ; 64= 1949 ; 24= 1950?? ; 22= 1950? ; 75= 1950 ; 13= 1951?? ; 14= 1951? ; 55= 1951 ; 8= 1952?? ; 31= 1952? ; 48= 1952 ; 4= 1953?? ; 55= 1953? ; 80= 1953 ; 8= 1954?? ; 77= 1954? ; 58= 1954 ; 21= 1955?? ; 83= 1955? ; 62= 1955 ; 4= 1956?? ; 60= 1956? ; 63= 1956 ; 2= 1957?? ; 75= 1957? ; 22= 1957 ; 4= 1958?? ; 5= 1958? ; 16= 1958 ; 2= 1959? ; 39= 1959 ; 1= 1960?? ; 7= 1960 ; 1= 1961? ; 1= 1965?? ; 1= 1968? ; 2= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1259
Collection of Martin Steyer (D)
Collection of Egon Penker (A)
Collection of Egon Strampe (D)
Collection of Siegfried Neumann (D)
Collection of Christian Schaufelberger (CH)
Collection of Carlos A. Pieroni-García (ROU)
Collection of Patrice Zeissloff (F)
Collection of Rudolf Osterkamp (D)
Collection of Karlheinz Fischer (D)
Collection of Karl - Heinz Bossan (D)
Collection of Heinz Schmidt (D)
Collection of Frank Cuffe (IRL)
Collection of Aldo Patriarca (CH)
Collection of Daniel Consales (D)
Collection of Joachim Glüder (D)
Collection of Ottmar Rollmann (D)
Collection of a member from FIN
Collection of Massimo Pedrina (I)
Collection of Bekir Yurdakul (F)
Collection of George Papaiz (CDN)
Collection of Geri Meier (CH)
Collection of Michael Gnaedig-Fischer (MEX)
Collection of Oskar Elm (D)
Collection of Marcello Astolfi (I)
Collection of David Erali (USA)
Collection of Tor Steinnes (N)
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