Antique radios, Old Time Radios

EM71

Country:	Germany	Brand:	Lorenz; Berlin, Zuffenhausen u.a.
		Developer:	Lorenz; Berlin, Zuffenhausen u.a.
		Tube type:	Mag. Fan, 1 shadow angle

Tube ID = 372


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Identical to	EM71
Similar Tubes	Other class quality (otherwise equal): EM71a Heater different: HM71
First Series	1949 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Sep.1950 : Funk-Technik (FT) # 18
Predecessor Tubes	EM4 EM11
Successor Tubes	EM80 EM71a

Base	Loctal-8, B8G (Sylvania, 1938)
Was used by	Radio/TV-reception etc.
Filament	Vf 6.3 Volts / If: 0.3 Ampere / -: Indirect / -: Parallel / series AC/DC /
Description	With Supply 250V and 1M ohm anode load, requires 0 to -20V for full range indication.
Tube prices	16 Tube prices (visible for members only)


	Courtesy Bureau Belper (De Muiderkring, Bussum) Michael Schlör

Courtesy Thomas Rapp, roehren-museum.de
Olaf Toenne

RTT 1974 (Franzis) 13. Auflage
Martin Renz

SEL Handbuch 1964
Peter Hoddow

Usage in Models (calculation each 25th of the month)	1= 1950?? ; 2= 1950? ; 17= 1950 ; 1= 1951?? ; 1= 1951? ; 24= 1951 ; 1= 1952?? ; 1= 1952? ; 26= 1952 ; 5= 1953?? ; 6= 1953? ; 26= 1953 ; 15= 1954 ; 2= 1955?? ; 1= 1955? ; 18= 1955 ; 3= 1956? ; 23= 1956 ; 1= 1957? ; 18= 1957 ; 1= 1958?? ; 2= 1958? ; 6= 1958 ; 7= 1959? ; 1= 1959 ; 1= 1960? ; 8= 1960 ; 1= 1961 ; 1= 1962? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 220

Further Information for

EM71

EM71 (23.08.2005) Robert Sarbell	Clicks: 842 Replies: 2
Hello Ernest, or JR, or any member who can provide some definitive guidance for the proper "test settings" for my Hickok 752A to test the Lorenz EM71 that I received today. I do have the respective Funke W19 test card, dated 7.57 (page 646) . . . .my main concerns are the control electrode designation; and the bias and shunt settings. Respectfully, Robert More ...

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