Antique radios, Old Time Radios

EF1

ID = 525

Country:

Netherlands

Brand:	Philips; Eindhoven (tubes international!); Miniwatt
Developer:	Philips; Eindhoven (tubes international!); Miniwatt
Tube type:	Vacuum Pentode Universal

Identical to

EF1 = TEF1 = VF1 = VEF1

Similar Tubes

Heater different:

CF1

First year

Mar.1934 Tube leaflet collection E.Erb Analysis by original leaflets (Bulletin D13)

First Source (s)

Mar.1934 : Philips Bulletin #D13

Successor Tubes

EF7

Base	Europe side contact P8A (Au P, 8SC) (Codex=Sf) Top contact with a cap
Filament	Vf 6.3 Volts / If 0.4 Ampere / Indirect / Parallel, (AC/DC)
Description	Erste Autoradio-Serie in Europa. Philips ab 1934 genannt (März, Philips Bulletin).
Tube prices	1 Tube prices (visible for members only)
Information source	Taschenbuch zum Röhren-Codex 1948/49


	EF1: ficha de valvulas Getulio Jimenez-Gomez

EF1: Collection JR
Jacob Roschy

EF1: Telefunken Werkstattbuch
Wolfgang Bauer

EF1: Telefunken 1935
Robert Schmalstieg

from Just Qvigstad

Usage in Models

3= 1934 ; 5= 1935 ; 2= 1936? ; 6= 1936 ; 1= 1937 ; 1= 1946 ; 1= 1947 ; 1= 1948

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):20

Literature "Funk" Vol. 12 No. 8 | 1935-04

Collection of Jacob Roschy (D)

Collection of Thomas Lebeth (A)

Collection of Christian Schaufelberger (CH)

Collection of Wolfgang Bauer (A)

Collection of Tomasz Szczesniak (PL)

Collection of Klaus Rüdiger (D)

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