▼ Menu

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 AM and Crown for UK Air Ministry.
The pinch and lower end of the cathode. The cathode tube has a tape connecting it to the central support rod. The insulated heater is wrapped around a central ceramic support. Both ends of the heater are connected to supports held in the glass pinch. The one on the right connects to a base pin. The left hand wire support is connected by a strap to the central vertical support.
The top of the cylindrical anode. The top of the cathode tube is connected to the two rod supports.
The classic envelope is 45 mm in diameter, and excluding the B4 base pins, is 109 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 15, 2019.
shape:classic construction:pinch type:rectifier.hw age:1930.1940 base:b4 heater:4.0v pins:4 pin:1.- pin:2.- pin:3.h.k pin:4.h pin:tc.a
Return to Main Index