Antique radios, Old Time Radios

UB41


			Tube type:	Double Diode

Tube ID = 975

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Identical to	UB41
Similar Tubes	Heater different: EB41
First year	1950 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Jul.1950 : Daten und Schaltungen moderner ... Röhren; Philips # 3A
Predecessor Tubes	UAA11
Successor Tubes	UAA91

Base	Rimlock base B8A
Filament	Vf 19 Volts / If: 0.1 Ampere / -: Indirect / -: Series, AC/DC /
Tube prices	0 Tube prices (visible for members only)
Literature	Röhren-Taschen-Tabelle 14.A, (Franzis RTT)


	UB41: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus †

UB41: collection JR
Jacob Roschy

UB41: Telefunken Werkstattbuch
Wolfgang Bauer

UB41: Lorenz Empfänger - Röhren
Anonymous 54 Collector

Usage in Models	1= 1948 ; 1= 1949 ; 2= 1950 ; 1= 1951? ; 27= 1951 ; 1= 1952? ; 7= 1952 ; 2= 1953 ; 4= 1954 ; 4= 1955??
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 50

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