Antique radios, Old Time Radios

UBL1

Country:	Europe	Brand:	Common type Europe tube
		Developer:	Philips; Eindhoven (tubes international!); Netherlands
		Tube type:	Double Diode-Pentode Power/Output

Tube ID = 968

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Identical to	UBL1
Similar Tubes	Other base: UBL3 Other base and data slightly different: UBL21
First year	1940 Tube leaflet collection E.Erb Analysis by original leaflets (P41-1)
First Source (s)	Jan.1940 : Daten und Schaltungen moderner ... Röhren; Philips # 3
Predecessor Tubes	CBL1 CBL6
Successor Tubes	1941 UBL21

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vb)
Filament	Vf 55 Volts / If: 0.1 Ampere / -: Indirect / -: Series, AC/DC /
Tube prices	1 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	UBL1: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †

UBL1: scc
Christian Schaufelberger

UBL1: Lorenz Empfänger-Röhren , 9. Auflage
Anonymous 54 Collector

UBL1: Röhrenhandbuch, Ratheiser, 1.Aufl. 1947
Egon Penker

Usage in Models	1= 1939 ; 6= 1940?? ; 1= 1940? ; 20= 1940 ; 1= 1941?? ; 1= 1941? ; 23= 1941 ; 1= 1942?? ; 1= 1942? ; 9= 1942 ; 1= 1943? ; 10= 1943 ; 1= 1944 ; 1= 1945?? ; 7= 1945 ; 2= 1946?? ; 2= 1946? ; 7= 1946 ; 2= 1947? ; 20= 1947 ; 3= 1948?? ; 47= 1948 ; 1= 1949?? ; 1= 1949? ; 14= 1949 ; 2= 1950?? ; 1= 1950 ; 1= 1952 ; 1= 1955??
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 188

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