Antique radios, Old Time Radios

PY81

Country:	Europe		Brand:	Common type Europe tube
			Tube type:	Damper, booster, flyback diode

Tube ID = 3375

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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	0 Tube prices (visible for members only)
Literature	- - Manufacturers Literature


	PY81: Philips 1957/58 Hilmer Grunert

PY81: scc
Christian Schaufelberger

PY81: RTT 1974 (Franzis) 13. Auflage
Martin Renz

PY81: Manufacturer's Literature
Emilio Ciardiello

Usage in Models

13= 1951 ; 4= 1952? ; 2= 1952 ; 8= 1953? ; 86= 1953 ; 4= 1954? ; 90= 1954 ; 4= 1955?? ; 2= 1955? ; 123= 1955 ; 11= 1956?? ; 1= 1956? ; 76= 1956 ; 23= 1957?? ; 7= 1957? ; 43= 1957 ; 5= 1958?? ; 8= 1958? ; 78= 1958 ; 11= 1959? ; 32= 1959 ; 13= 1960?? ; 16= 1960? ; 22= 1960 ; 1= 1961?? ; 17= 1961? ; 9= 1961 ; 17= 1962? ; 4= 1962 ; 13= 1963? ; 2= 1963 ; 4= 1964?? ; 10= 1964? ; 8= 1965?? ; 4= 1965? ; 4= 1965 ; 1= 1966 ; 1= 1967 ; 7= 1968?? ; 1= 1968 ; 4= 1969?? ; 2= 1969?

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 791

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