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EY81

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ID = 3896
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Damper, booster, flyback diode 
Identical to EY81 = 6R3
Similar Tubes
Normally replaceable-slightly different:
  6Д14П ; 6Д20П
Other class quality (otherwise equal):
  EY81F
Heater different:
  LY81 ; PY81
Different connections:
  6Z19
First year 1953 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Mar.1955 : -- Original-techn. papers.
Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Indirect / Specified voltage AC/DC
Tube prices 2 Tube prices (visible for members only)
ey81.png
EY81: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
no29.png EY81: RTT 1974 (Franzis) 13. Auflage
Martin Renz

Just Qvigstad 		ey81_techdat01.png
EY81: SEL Handbuch 1964
Peter Hoddow
More ...
Usage in Models 1= 1953 ; 1= 1955?? ; 8= 1955 ; 4= 1956? ; 9= 1956 ; 1= 1957?? ; 3= 1957? ; 9= 1957 ; 4= 1958?? ; 3= 1958? ; 21= 1958 ; 1= 1959?? ; 2= 1959? ; 4= 1959 ; 6= 1960?? ; 4= 1960? ; 3= 1960 ; 1= 1961?? ; 1= 1962? ; 3= 1963?? ; 1= 1963? ; 4= 1963 ; 1= 1964?? ; 1= 1964 ; 1= 1965?? ; 2= 1966?? ; 1= 1968?? ; 2= 1969??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):102

Collection of

Raynal Aufils (F)
Collection of a member from FIN
Tor Steinnes (N)
Patrice Zeissloff (F)
Jacky Parmentier (F)
Reinhard Riek (D)
Peter Pfeiffer (D)
Danko Tkalec (HR)
Karl - Heinz Bossan (D)
Jürgen Tiedmann (D)
Frank Cuffe (IRL)
Peter Steffen (CH)
Oskar Elm (D)
Marcello Astolfi (I)
Hannu Alho (FIN)
Tomasz Szczesniak (PL)
Wolfgang Bauer (A)
Collection of a member from D
Georges Werts (B)
 
ey81_siemens.jpg

EY81
 
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