1T4, Tube 1T4; Röhre 1T4 (1T4)

Antique radios, Old Time Radios

1T4

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

Tube ID = 429


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Identical to	1T4 = DF91 = VT-173 = W17 = 1K2
Similar Tubes	1T4T (Heater different) 399A (Heater different) 399B (Heater different)
First Series	1940 Tube leaflet collection E.Erb Analysis by original leaflets

Base	Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Zoo)
Was used by	Radio/TV-reception etc.
Filament	-: Direct / -: Battery = / If: 0.05 Ampere / Vf 1.4 Volts /
Tube prices	2 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49


	Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus

MS
Martin Steyer

Telefunken Werkstattbuch
Wolfgang Bauer

Röhrensammlung W.Raacke
Werner Raacke

Usage in Models

1= 1937? ; 1= 1940?? ; 1= 1940? ; 5= 1940 ; 9= 1941?? ; 3= 1941? ; 20= 1941 ; 2= 1942?? ; 2= 1942? ; 17= 1942 ; 1= 1943?? ; 3= 1945?? ; 1= 1945? ; 1= 1945 ; 4= 1946?? ; 2= 1946? ; 33= 1946 ; 1= 1947?? ; 3= 1947? ; 53= 1947 ; 3= 1948?? ; 5= 1948? ; 45= 1948 ; 6= 1949?? ; 5= 1949? ; 34= 1949 ; 21= 1950?? ; 5= 1950? ; 29= 1950 ; 8= 1951?? ; 3= 1951? ; 33= 1951 ; 16= 1952?? ; 5= 1952? ; 23= 1952 ; 4= 1953?? ;

Number of Models with this tube 532

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1T4

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