Antique radios, Old Time Radios

A442

ID = 2457

Country:

Netherlands

Brand:	Philips; Eindhoven (tubes international!); Miniwatt
Developer:	Philips; Eindhoven (tubes international!); Miniwatt
Tube type:	Screen-grid Tetrode RF/IF-Stage
	Ca. 1925 up to 1945 rare.

Identical to

A442

Similar Tubes

Normally replaceable-slightly different:

410SG ; 4B6_Ultron ; A2004 ; A442K ; C150 ; DS1 ; L409 ; OX304 ; R81Ecran ; RO4142 ; S4 ; VH300

Other base:

A442_UX4

First year

1927 Tube leaflet collection E.Erb Analysis by original leaflets

Base

Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er) Top contact screw type.

Was used by

Radio/TV-reception etc.

Filament

Vf 4 Volts / If 0.06 Ampere / Direct / Battery =

Description

Also made with UX4 base.

Dimensions (WHD)
incl. pins / tip

45 x 125 x 35 mm / 1.77 x 4.92 x 1.38 inch

Weight

58 g / 2.05 oz

Information source

- - Manufacturers Literature
Taschenbuch zum Röhren-Codex 1948/49

A442: OWN COLLECTION Loris Bugamelli
A442: Telefunken Werkstattbuch Wolfgang Bauer	Just Qvigstad	A442: RVF-Röhrenbuch-M1,1947 Anonymous 15 Collector More ...

Usage in Models

3= 1927?? ; 2= 1927? ; 8= 1927 ; 1= 1928?? ; 14= 1928? ; 17= 1928 ; 5= 1929?? ; 3= 1929? ; 16= 1929 ; 4= 1930?? ; 2= 1930? ; 36= 1930 ; 8= 1931 ; 6= 1932 ; 1= 1933? ; 2= 1933 ; 1= 1934 ; 1= 1940??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):130

Museum "Technik-Museum.ch"

Collection of

Patrice Zeissloff (F)

A442

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