Antique radios, Old Time Radios

E438

Country:	Netherlands		Brand:	Philips; Eindhoven (tubes international!); Netherlands
			Tube type:	Triode, vacuum Universal

Tube ID = 1700

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Identical to	E438 = REN1004 = 5-438 = RS4230 = RS4238 = W4080 = 354VX
Similar Tubes	Other shape (e.g. bulb type): T5-438 Normally replaceable-slightly different: 107; 484V; AR4100; DW3559; DW4023; Dn404; E438N; I503; J4078; NW4; REN1004; S440N; S440N; TE38; TM-CDT1; W307_Marathon; W415N; W438; WG43; WN4 Heater different: B2038 Other base: E438_UY
First year	1928 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Jul.1929 : -- Original-techn. papers.

Base	Europe 5-Pin (O5A, B5) (Codex=F)
Filament	Vf 4 Volts / If: 1 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Tube prices	2 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	E438: Internet Miguel Angel Trujillo-Rodriguez

E438: Collection TL
Thomas Lebeth

E438: Telefunken Werkstattbuch
Wolfgang Bauer

E438: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models	1= 1928 ; 20= 1929 ; 1= 1930?? ; 2= 1930? ; 36= 1930 ; 1= 1931?? ; 4= 1931? ; 33= 1931 ; 3= 1932?? ; 12= 1932 ; 5= 1933?? ; 3= 1933? ; 10= 1933 ; 1= 1934? ; 10= 1934 ; 1= 1935?? ; 2= 1935? ; 6= 1935 ; 2= 1936 ; 1= 1937?? ; 1= 1939
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 155

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