Antique radios, Old Time Radios

E447

ID = 1733

Country:

Netherlands

Brand:	Philips; Eindhoven (tubes international!); Miniwatt
Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Identical to

E447 = RENS1294 = A4AMS = A4AMS2 = TE47 = NVS43 = WE24 = LAS324 = HP4106 = RS4347 = 5-447 = S432 = VMP4 = 4A10_Ultron = H4129D

Similar Tubes

Other shape (e.g. bulb type):

T5-447

Normally replaceable-slightly different:

AC/VP ; DH204 ; MT4110 ; S434N ; T4700 ; TE474 ; TM-C3G-PV ; VH2 ; W447 ; W519

Other characteristic (electr. data):

AF2

Heater different:

B2047

Other base:

E447_UX7 ; NVS43_B5+1

Other base and data slightly different:

HP4105

First year

1933 Tube leaflet collection E.Erb Analysis by original leaflets

First Source (s)

Apr.1933 : Philips Bulletin #D6

Apr.1933 : L'Histoire Singulière du Tube Radio; G. Duperray 2009

Predecessor Tubes

E455

Successor Tubes

AF2 AF3

Base

Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fco) Top contact screw type.

Was used by

Radio/TV-reception etc.

Filament

Vf 4 Volts / If 1.1 Ampere / Indirect / Specified voltage AC/DC

Description

This tube is a variable mu type.

Information source

- - Manufacturers Literature
Babani, International Radio Tube Encyclopaedia p. 100 & 101
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

E447: ficha de valvulas Getulio Jimenez-Gomez
E447: Telefunken Werkstattbuch Wolfgang Bauer	Just Qvigstad	E447: RVF-Röhrenbuch-M1,1947 Anonymous 15 Collector More ...

Usage in Models

3= 1933?? ; 5= 1933? ; 51= 1933 ; 1= 1934?? ; 10= 1934? ; 60= 1934 ; 1= 1935?? ; 5= 1935? ; 21= 1935 ; 2= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):159

Collection of

Jean-Jacques Pontigny (F)

Jose Luis Villabona Horreo (E)

Roberto Guidorzi (I)

Collection of a member from FIN

Tomasz Szczesniak (PL)

Collection of a member from D

Heinz Schmidt (D)

Rudolf Osterkamp (D)

E447

Variants

Obenanschluß steckbar. Philips Miniwatt .Made in Great Britain

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