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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?? ; 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):101

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)
Karlheinz Fischer (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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