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EF91 Info
Country:  Europe      Brand:  Common type Europe 
  Tube type:  PENTODE   RF/IF-Stage 
Tube ID = 18603
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Identical to EF91 = Z77 = 6F12 = 8D3 = 6AM6 = N79 = CV138
Similar Tubes 7498 (can normally be replaced - small diff'ce)   6064 (can normally be replaced - small diff'ce)   6024 (can normally be replaced - small diff'ce)   6AM6S (other class quality (otherw. equal))   M8083 (other class quality (otherw. equal))   CV4014 (other class quality (otherw. equal))   S6F12 (other class quality (otherw. equal))  

Was used by Radio/TV-reception etc.
Filament -: Indirect /
Tube prices 0 Tube prices (visible for members only)
Literature -- Collector info (Sammler)   
  ef91.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
ef91_1.jpg
MS
Martin Steyer

 
mi16.png
RTT 1964 (Franzis) 10. Auflage
Martin Renz

 
ef91_techdat01.png
SEL Handbuch 1964
Peter Hoddow

Usage in Models   2= 1948 ; 1= 1949 ; 1= 1954?? ; 1= 1954 ; 3= 1955?? ; 1= 1955 ; 2= 1956?? ; 2= 1957? ; 2= 1960?? ; 1= 1963? ; 3= 1965?? ; 1= 1966? ;
Number of Models with this tube   20
No further Information for

EF91    

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03DecX