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EY86/87

 
    
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The EY86/87 from mullard is a high voltage half wave rectifier. It was designed as an EHT rectifier in television receivers and instruments.
The reverse of the envelope showing the anode bell and heater connections and cathode support.
The oxide coated cathode tube can be seen in the centre of the anode.
The thin glass tube envelope is 21 mm in diameter, and excluding the base pins is 61 mm tall.
References: datasheet Type EY86/87 was first introduced in 1956.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
tc
h,k,s
h
-
k,h,s
h
h,k,s
-
h
h,k,s
a

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
6.3
0.09
22,000
0.8
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 05, 2011.
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