UCH 4, Tube UCH4; Röhre UCH 4 (UCH4)

Antique radios, Old Time Radios

UCH4

Country:	Europe	Brand:	Common type Europe
		Developer:	Philips; - Eindhoven; Netherlands
		Tube type:	Triode-Heptode Frequency converter Controlling (mu)

Tube ID = 966


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Identical to	UCH4 = 20CH4U
Similar Tubes	UCH21 (other base) UCH5 (other base) OCH4 (Heater different)
First Series	1940 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Apr.1940 : Daten und Schaltungen moderner ... Röhren; Philips # 3
Predecessor Tubes	CK1 CCH2 CK3
Successor Tubes	UCH21 UCH5 UCH41

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vao)
Was used by	Radio/TV-reception etc.
Filament	-: Indirect / -: Series, AC/DC / If: 0.1 Ampere / Vf 20 Volts /
Tube prices	0 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


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

JR
Jacob Roschy

g.h.
Gerhard Heigl

RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models	1= 1939? ; 1= 1939 ; 1= 1940?? ; 1= 1940? ; 18= 1940 ; 12= 1941 ; 7= 1942 ; 4= 1943 ; 1= 1945?? ; 4= 1945 ; 1= 1946?? ; 1= 1946? ; 6= 1946 ; 2= 1947? ; 20= 1947 ; 1= 1948?? ; 1= 1948? ; 45= 1948 ; 12= 1949 ; 1= 1950?? ; 1= 1950 ; 1= 1955?? ;
Number of Models with this tube 142

No further Information for

UCH4

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