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EF86

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ID = 2011
       
Country:
Worldwide
Brand:
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to EF86 = 6CF8 = 6Ж32П = 6BK8 = Z729 = 6F22 = CV2901
Similar Tubes
Other class quality (otherwise equal):
  6267 ; CV4085 ; EF806S ; EF86s ; M8195
Other characteristic (electr. data):
  E80F
Heater different:
  PF86 ; UF86
Other base and data slightly different:
  5879
Differences not known by us:
  EF866
Multiple differences or of other kind:
  CV4086 ; EL6825/00
First year 1954 Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) Trader Sheet GB from June 1954.
First Source (s)
Jan.1954 : -- Original-techn. papers. Could be market introduction?
Aug.1953 : Wireless World (The), London (WW, 79) As possible announcement for manuf. for 1954?
Predecessor Tubes EF40  
Successor Tubes EF806S  

Base Noval, 9 pin miniature (USA pico-9) B9A
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Description

Lineare (ungeregelte) NF-Pentode. Meistens in NF- Verstärkern eingesetzt. Ausnahme für Radios: (z.B.) Saba Meersburg Automatik 7 und Freiburg automatik 7 von 1956.

 
Tube prices 89 Tube prices (visible for members only)

ef86.png
EF86: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †

no11_1.png EF86: RTT 1974 (Franzis) 13. Auflage
Martin Renz

More ...

Just Qvigstad
ef86_valvo_data_01.png
EF86: Valvo
Dietrich Grötzer

More ...
Usage in Models 1= 1954?? ; 6= 1954? ; 5= 1954 ; 36= 1955?? ; 12= 1955? ; 42= 1955 ; 29= 1956?? ; 26= 1956? ; 93= 1956 ; 9= 1957?? ; 30= 1957? ; 102= 1957 ; 25= 1958?? ; 57= 1958? ; 151= 1958 ; 18= 1959?? ; 55= 1959? ; 137= 1959 ; 82= 1960?? ; 32= 1960? ; 85= 1960 ; 9= 1961?? ; 28= 1961? ; 79= 1961 ; 19= 1962?? ; 32= 1962? ; 78= 1962 ; 11= 1963?? ; 16= 1963? ; 59= 1963 ; 8= 1964?? ; 8= 1964? ; 52= 1964 ; 32= 1965?? ; 15= 1965? ; 35= 1965 ; 6= 1966?? ; 4= 1966? ; 23= 1966 ; 5= 1967?? ; 3= 1967? ; 26= 1967 ; 6= 1968?? ; 3= 1968? ; 9= 1968 ; 1= 1969?? ; 6= 1969? ; 5= 1969 ; 19= 1970?? ; 1= 1970? ; 2= 1971 ; 2= 1972?? ; 1= 1972 ; 1= 1973 ; 1= 1975?? ; 1= 1975? ; 1= 1977?? ; 1= 1980?? ; 1= 1984 ; 1= 1990 ; 1= 9999?? ; 2= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1646

Collection of

 
ef86_98rm428d.jpg

EF86
 

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