Antique radios, Old Time Radios

F443N

Country:	Netherlands		Brand:	Philips; - Eindhoven; Netherlands
			Tube type:	Vacuum Pentode Power/Output

Tube ID = 2896


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Identical to	F443N = L497D = 4650
Similar Tubes	Normally replaceable-slightly different: F443; P460_Triotron
First Series	1933 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Oct.1933 : -- Original-Prospect
Predecessor Tubes	F443
Successor Tubes	1947 EL60 EL34 AL5 EL5

Base	Europe 5-Pin (O5A, B5) (Codex=Foo)
Was used by	Radio/TV-reception etc.
Filament	Vf 4 Volts / If: 2 Ampere / -: Direct / -: Parallel, (AC/DC) /
Description	F443 is the first series produced 25 watts output-pentode, thus it is the ancestress of the later EL34. At 550 Vp and 250 Vg2 the F443N is capable of 41 watts output power in push-pull [Jacob Roschÿ, 2003-03-17] Text in other languages (may differ)
Tube prices	2 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	ficha de valvulas Getulio Jimenez-Gomez

eigene Sammlung
David Pfister

Telefunken Werkstattbuch
Wolfgang Bauer

RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models (calculation each 25th of the month)	1= 1933 ; 1= 1934? ; 1= 1935? ; 1= 1935 ; 1= 1936? ; 2= 1936 ; 1= 1937?? ; 1= 1938 ; 1= 1939 ; 1= 1946?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 11

No further Information for

F443N

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