EFM 11, Tube EFM11; Röhre EFM 11 (EFM11)

Antique radios, Old Time Radios

EFM11

Country:	Germany	Brand:	Telefunken Deutschland (TFK)
		Developer:	Telefunken Deutschland (TFK)
		Tube type:	Mag.Eye-Pentode Controlling (mu)

Tube ID = 245


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Identical to	EFM11
Similar Tubes	EFM1 (other base) WE18 (other base) UFM11 (Heater different)
First Series	Jul.1938 Tube leaflet collection E.Erb Analysis by original leaflets (V7)
First Source (s)	15.Jul.1938 : Funk, Die Zeitschrift des Funkwesens 1938 #14
Predecessor Tubes	AM2 C/EM2
Successor Tubes	1939 EM11

Base	German Steel Y8A, 1938 (Codex=R)
Was used by	Radio/TV-reception etc.
Filament	-: Indirect / -: Parallel / series AC/DC / If: 0.2 Ampere / Vf 6.3 Volts /
Tube prices	8 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus

Röhrensammlung
Wolfgang Bauer

Telefunken Werkstattbuch
Wolfgang Bauer

Rundfunkröhren Ratheiser 1949
Gerhard Heigl

Usage in Models	2= 1938? ; 52= 1938 ; 1= 1939? ; 54= 1939 ; 1= 1940?? ; 15= 1940 ; 1= 1941? ; 6= 1941 ; 1= 1942?? ; 1= 1942 ; 1= 1943? ; 5= 1943 ; 1= 1944?? ; 5= 1944 ; 1= 1945?? ; 1= 1945 ; 1= 1946?? ; 1= 1946? ; 5= 1946 ; 1= 1947? ; 7= 1947 ; 13= 1948 ; 1= 1949? ; 5= 1949 ; 3= 1950?? ; 27= 1950 ; 1= 1951?? ; 1= 1951? ; 9= 1951 ; 1= 1952? ;
Number of Models with this tube 224

Further Information for

EFM11

Anzeigeempfindlichkeit der EFM 11 verbessern (19.03.2006) Rigo Janscheidt	Clicks: 834 Replies: 3
Guten Tag Wer weiß eine Möglichkeit oder gibt es einen Trick um die Anzeigeempfindlichkeit der EFM 11 zu verbessern? ------------ EM: Beitrag aus "Allgemein" zur Röhre verschoben More ...

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