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PY81

Information - Help 
ID = 3375
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Damper, booster, flyback diode 
Identical to PY81 = 17Z3 = 17R7
Similar Tubes
Normally replaceable-slightly different:
  U153
Other class quality (otherwise equal):
  PY801 ; PY81F
Different maximum ratings:
  PY83
Heater different:
  EY81
First year 1951 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Sep.1951 : Funkschau (FS) # 18
Successor Tubes 1952   PY83  

Base Noval, B9A Top contact with a cap
Filament Vf 17 Volts / If 0.3 Ampere / Indirect / Series, AC/DC /
Dimensions (WHD)
incl. pins / tip
22 x 83 x mm / 0.87 x 3.27 x inch
Weight 20 g / 0.71 oz
Tube prices 1 Tube prices (visible for members only)
Literature - - Manufacturers Literature   

  pl81mustersch.png
  PY81: Philips 1957/58
Hilmer Grunert
 
py81_philips.jpg
PY81: My own collection
Hannu Alho

 
17z3~~1.png
PY81: Manufacturer's Literature
Emilio Ciardiello

 
py81_01_1.png
PY81: Manufacturer's Literature
Emilio Ciardiello


Usage in Models 15= 1951 ; 3= 1952? ; 4= 1952 ; 2= 1953?? ; 7= 1953? ; 94= 1953 ; 5= 1954? ; 92= 1954 ; 5= 1955?? ; 3= 1955? ; 127= 1955 ; 11= 1956?? ; 3= 1956? ; 84= 1956 ; 26= 1957?? ; 20= 1957? ; 53= 1957 ; 6= 1958?? ; 17= 1958? ; 92= 1958 ; 12= 1959? ; 36= 1959 ; 19= 1960?? ; 17= 1960? ; 26= 1960 ; 4= 1961?? ; 18= 1961? ; 11= 1961 ; 1= 1962?? ; 20= 1962? ; 5= 1962 ; 13= 1963? ; 2= 1963 ; 3= 1964?? ; 10= 1964? ; 11= 1965?? ; 5= 1965? ; 6= 1965 ; 1= 1966?? ; 1= 1966? ; 6= 1966 ; 3= 1967 ; 8= 1968?? ; 2= 1968? ; 1= 1968 ; 4= 1969?? ; 3= 1969? ; 2= 1970?? ; 2= 9999

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):921


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