Antique radios, Old Time Radios

1U4

Country:	United States of America (USA)		Brand:	Common type USA tube
			Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Tube ID = 2627

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Identical to	1U4 = DF904 = DF904/1U4 = 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	2 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49


	1U4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †

1U4: MS
Martin Steyer

1U4: Prüfkarte Röhrenprüfgerät W 18N
Jörg Kulbe

1U4: Valvulas de recepción manual RC-20
Miguel Angel Trujillo-Rodriguez

Usage in Models

7= 1946 ; 3= 1947?? ; 5= 1947? ; 33= 1947 ; 4= 1948?? ; 7= 1948? ; 64= 1948 ; 10= 1949?? ; 2= 1949? ; 68= 1949 ; 23= 1950?? ; 18= 1950? ; 68= 1950 ; 12= 1951?? ; 9= 1951? ; 26= 1951 ; 6= 1952?? ; 22= 1952? ; 54= 1952 ; 4= 1953?? ; 48= 1953? ; 71= 1953 ; 7= 1954?? ; 69= 1954? ; 47= 1954 ; 17= 1955?? ; 79= 1955? ; 57= 1955 ; 2= 1956?? ; 56= 1956? ; 46= 1956 ; 2= 1957?? ; 44= 1957? ; 9= 1957 ; 5= 1958?? ; 2= 1958? ; 18= 1958 ; 4= 1959? ; 39= 1959 ; 7= 1960 ; 1= 1968?

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 1075

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