Antique radios, Old Time Radios

MPT4

Country:	Great Britain (UK)		Brand:	Marconi-Osram - (Valves/Tubes); GB
			Tube type:	Vacuum Pentode Power/Output

Tube ID = 2913


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Identical to	MPT4 = VT115 = CV1683
Similar Tubes	Other base: MPT4_7pin
Successor Tubes	MKT4_5pin

Base	Europe 5-Pin (O5A, B5) (Codex=Ndo) Sidecontact
Was used by	Radio/TV-reception etc.
Filament	Vf 4 Volts / If: 1 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Description	Pa<8W; Typ 2.5W audio output at Va=259; Ia=32mA; Rl=8k.
Literature	Taschenbuch zum Röhren-Codex 1948/49


	"Trader" Service Sheet 518 Georg Richter

GR
Georg Richter

rtt
Michael Schlör

Marconi Datasheet
Georg Richter

Usage in Models (calculation each 25th of the month)	2= 1931 ; 1= 1932? ; 1= 1932 ; 1= 1933?? ; 4= 1933? ; 8= 1933 ; 3= 1934?? ; 1= 1934? ; 7= 1934 ; 3= 1935?? ; 1= 1935? ; 4= 1935 ; 2= 1936? ; 1= 1936 ; 7= 1945? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 46

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MPT4

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