Antique radios, Old Time Radios

TH4A

Country:	Hungary		Brand:	Tungsram; Budapest (see also British T.)
			Tube type:	Triode-Heptode

Tube ID = 8680


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Identical to	TH4A
Similar Tubes	Normally replaceable-slightly different: TH4B_Tungsram

Base	British-7-Pin, old (M7A) (Codex=Nao)
Filament	Vf 4 Volts / If: 1.5 Ampere / -: Indirect /
Literature	Taschenbuch zum Röhren-Codex 1948/49

W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

Usage in Models (calculation each 25th of the month)	1= 1937?? ; 1= 1937? ; 5= 1937 ; 9= 1938 ; 2= 1939?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 18

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TH4A

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