Antique radios, Old Time Radios

E448

Country:	Netherlands	Brand:	Philips; - Eindhoven; Netherlands
		Developer:	Telefunken Deutschland (TFK)
		Tube type:	HEXODE Frequency converter

Tube ID = 2893


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Identical to	E448 = X4122 = RENS1224 = H425N = NSS45
Similar Tubes	Heater different: B2048
First Series	1933 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Apr.1933 : Philips Bulletin #D6
Predecessor Tubes	REN704d U4100D
Successor Tubes	AK1

Base	Europe 7-Pin (C7A, C, 1933) (Codex=Lf) Top contact with a cap
Was used by	Radio/TV-reception etc.
Filament	Vf 4 Volts / If: 1 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Tube prices	1 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	ficha de valvulas Getulio Jimenez-Gomez

Collection TL
Thomas Lebeth

Telefunken Werkstattbuch
Wolfgang Bauer

RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

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

No further Information for

E448

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