Antique radios, Old Time Radios

L496D

Country:	Germany		Brand:	Valvo Radioröhrenfabrik GmbH; Hamburg
			Tube type:	Vacuum Pentode Power/Output

Tube ID = 1722

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Identical to	L496D = RES964 = E443H = PP4101 = RTP4 = P435
Similar Tubes	Other base: AL1
First year	1933 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Sep.1933 : Funkschau (FS)
Predecessor Tubes	L427D
Successor Tubes	1935 AL1

Base	Europe 5-Pin (O5A, B5) (Codex=Foo)
Filament	Vf 4 Volts / If: 1.1 Ampere / -: Direct /
Description	L496D Valvo = E443H Philips. By model of the very similar USA-types PZ or 47 from 1931, with the E443H (= L496D)Philips now introduced output pentodes in Europe with equally 250 Volts screen and plate voltage, it also brought the 7k-ohms load-standard to Europe which remained until the end of the tube era. The former E443N required 400 Vp, but extra 200 Vg2 [J.R. 2003-01-19] Text in other languages (may differ)
Tube prices	3 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	L496D Egon Strampe

L496D: M.M.
Michael Mischke

L496D: Telefunken Werkstattbuch
Wolfgang Bauer

L496D: Valvo-Röhren-Daten 1934
Jacob Roschy

Usage in Models	2= 1933? ; 2= 1933 ; 1= 1934? ; 6= 1934 ; 2= 1935 ; 1= 1936 ; 1= 1937? ; 1= 1938??
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 16

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