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EF41

Information - Help 
ID = 719
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to EF41 = 6CJ5 = HF61 = W150 = 62VP = 7F16
Similar Tubes
Other characteristic (electr. data):
  EF410
Other base:
  6BH5 ; 6F16 ; EF22 ; EF81 ; W143 ; W147
First year 1947 Tube leaflet collection E.Erb
First Source (s)
Mar.1947 : Daten und Schaltungen moderner ... Röhren; Philips # 3A
Dec.1947 : Funk-Technik (FT) # 24
Predecessor Tubes EF9   EF22   6M7MG   EF11  
Successor Tubes 1954   EF89   EF410  
Base Rimlock base B8A (Codex=Wh)
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Dimensions (WHD)
incl. pins / tip		 22 x 60 x mm / 0.87 x 2.36 x inch
Tube prices 10 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
ef41.png
EF41: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
ri3.png EF41: RTT 1974 (Franzis) 13. Auflage
Martin Renz
More ...
Just Qvigstad 		ef41_spec.png
EF41: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
Usage in Models 10= 1948?? ; 3= 1948? ; 6= 1948 ; 14= 1949?? ; 24= 1949? ; 74= 1949 ; 101= 1950?? ; 55= 1950? ; 225= 1950 ; 36= 1951?? ; 83= 1951? ; 376= 1951 ; 62= 1952?? ; 103= 1952? ; 352= 1952 ; 68= 1953?? ; 97= 1953? ; 360= 1953 ; 38= 1954?? ; 69= 1954? ; 220= 1954 ; 49= 1955?? ; 52= 1955? ; 126= 1955 ; 7= 1956?? ; 28= 1956? ; 60= 1956 ; 10= 1957?? ; 14= 1957? ; 40= 1957 ; 4= 1958?? ; 13= 1958? ; 10= 1958 ; 2= 1959?? ; 3= 1959? ; 3= 1959 ; 8= 1960?? ; 1= 1960? ; 3= 1960 ; 1= 1961?? ; 1= 1962?? ; 1= 1962 ; 1= 1964 ; 1= 1965?? ; 15= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2829
Museum "RadioMuseum Köln"
Literature "Radio" No. 3 | 1951-06

Collection of

Collection of a member from D
Walter Nigg (FL)
Oskar Elm (D)
Werner Wussow (D)
Jürgen Küting (D)
Ottmar Rollmann (D)
Baptiste Hobbe (CDN)
David Erali (USA)
Franco Antolini (I)
Aires Gomes (P)
Collection of a member from D
Trev Levick (D)
Christian Schaufelberger (CH)
Collection of a member from FIN
Collection of a member from D
Collection of a member from D
Karlheinz Fischer (D)
João-Afonso Santos (P)
Danko Tkalec (HR)
Howard Craven (GB)
Hartmut Völler (D)
Timo Rantasaari (FIN)
Tomasz Szczesniak (PL)
Thomas Loidl (A)
Stefan Müller (D)
Alberto Zappacosta (I)
Otto Frosinn (D)
Jacky Parmentier (F)
Bekir Yurdakul (F)
Hannu Alho (FIN)
Antonio Rabitti (BR)
Ralf Meinke (D)
Karl - Heinz Bossan (D)
Alexander Hofer (A)
Peter Pfeiffer (D)
Georges Werts (B)
Vitor Oliveira (P)
Jacob Roschy (D)
Patrice Zeissloff (F)
Ulrich Fieseler (D)
Reinhard Riek (D)
Jose Luis Villabona Horreo (E)
Bruno Candreia (CH)
 
roehre_ef41.jpg

EF41
 

Variants

EF41 whith the special "Mazda-Rimlock" base
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