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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 = 7F16 = 62VP
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?? ; 52= 1950? ; 225= 1950 ; 36= 1951?? ; 83= 1951? ; 376= 1951 ; 62= 1952?? ; 103= 1952? ; 352= 1952 ; 64= 1953?? ; 92= 1953? ; 358= 1953 ; 38= 1954?? ; 66= 1954? ; 219= 1954 ; 49= 1955?? ; 50= 1955? ; 127= 1955 ; 7= 1956?? ; 28= 1956? ; 59= 1956 ; 10= 1957?? ; 12= 1957? ; 38= 1957 ; 4= 1958?? ; 13= 1958? ; 10= 1958 ; 2= 1959?? ; 2= 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):2804
Museum "RadioMuseum Köln"
Literature "Radio" No. 3 | 1951-06

Collection of

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

EF41
 

Variants

EF41 whith the special "Mazda-Rimlock" base
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