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CV2966

Sensibly equivalent to:
6S2 EY86
    
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The CV2966 is a television EHT rectifier and is rated in terms of peak inverse volts (PIV). The PIV for the CV2966 is 22,000 Volts. If fed from a sine wave the anode voltage would be limited to just under 8,000 Volts, but driven from the positive peaks of the line output transformer the rectified voltage can be about 17,000 volts. This is sufficient for a medium sized black and white TV. The maximum reservoir capacitor for use with this valve is 0.002 µF, normally the capacitance of the CRT itself is used as reservoir.
The EY86 is the commercial equivalent.
The anode is a cylinder closed at the top and firmly fixed to the top cap. The cathode assembly is not visible due to the presence of the shield. The latter helps to prevent radiation of harmonics from the spiky input waveform.
The thin glass tube envelope is 19 mm in diameter and excluding the B9A base pins the valve is 65 mm long.
References: Datasheet & 1040.

 

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

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
mAa
6.3
0.09
0.8
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 13, 2013.
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