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EM81 Info
Country:  Europe      Brand:  Common type Europe 
  Tube type:  Mag. Fan, 1 shadow angle 
Tube ID = 3163
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Identical to EM81 = 6DA5
Similar Tubes EM80 (can normally be replaced - small diff'ce)   EM85 (Multiple differences or of other kind)  
First Source (s) Apr.1956 : -- Original-techn. papers.
Successor Tubes 1957 EM84  

Base Noval, B9A
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel / series AC/DC / If: 0.3 Ampere / Vf 6.3 Volts /
Description exchangeable by EM80 
Text in other languages (may differ)
Dimensions (WHD) 22 x 67 x 22 mm / 0.87 x 2.64 x 0.87 inch
Tube prices 0 Tube prices (visible for members only)

  em81_1.png
  Courtesy Bureau Belper (De Muiderkring, Bussum)
Michael Schlör
em81_fr.jpg
collection JR
Jacob Roschy

 
no54_1.png
RTT 1974 (Franzis) 13. Auflage
Martin Renz

 
em81_techdat01.png
SEL Handbuch 1964
Peter Hoddow

Usage in Models   1= 1953? ; 3= 1954?? ; 4= 1954? ; 3= 1955?? ; 4= 1955? ; 1= 1955 ; 2= 1956?? ; 3= 1956? ; 27= 1956 ; 3= 1957?? ; 2= 1957? ; 76= 1957 ; 7= 1958?? ; 5= 1958? ; 72= 1958 ; 1= 1959?? ; 5= 1959? ; 42= 1959 ; 17= 1960?? ; 5= 1960? ; 15= 1960 ; 1= 1961?? ; 1= 1961? ; 6= 1961 ; 1= 1962?? ; 1= 1962? ; 2= 1962 ; 1= 1963 ; 1= 1964?? ; 1= 1964? ; 1= 1964 ; 6= 1965?? ; 1= 1965? ; 1= 1966? ;
Number of Models with this tube   322
No further Information for

EM81    

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