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HVR2

Sensibly equivalent to:
CV1134 CV1291 NU33A NU34 VU134
See also:
Pioneers of HT Rectifiers - CV1291 short entry
    
Extras ▼

 

The HVR2 is a half wave low current EHT rectifier from Mullard. It would have been designed for provision of EHT in such applications as Radar and Oscilloscopes where Cathode Ray Tube indicators were used.
See also HVR2A two volt type.
The anode supports are glass and fused into the pinch.
The white tube is the oxide coated cathode. The wide separation of the cathode from the anode is because its high voltage design and provides extra insulation.
The classic envelope is 45 mm in diameter, and excluding the B4 base pins, is 112 mm tall.
References: Datasheet & 3002. Type HVR2 was first introduced in 1937.

 

Pin Connections
B4
1
2
3
4
tc
-
-
h,k
h
a

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
4.0
0.65
6,000
3.0
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 09, 2015.
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