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PY80

Sensibly equivalent to:
19X3 U152 U309
See also:
Valves and their Habits
    
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The PY80 is an early efficiency diode for television line scan systems and was part of the world series valves introduced by Mullard in 1950.
The maximum peak inverse voltage on the anode has to be under 4 kV. The peak heater to cathode voltage has to be under 650 Volts.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 67 mm tall.
References: Datasheet & 1040. Type PY80 was first introduced in 1950.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
ic
ic
k
h
h
ic
ic
ic
a

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
mAa
19
0.3
180
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 07, 2015.
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