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CV4072 reliable high voltage halfwave rectifier

Size This valve measures 112x27mm overall. It has an 8 pin base but the pins are strapped together into two sets.

The pinned version of this valve is CV4071 which was developed from the CV404.

Base detail

Heater voltage 4.0V
Heater current 1.5A
Max RMS anode voltage 6kV
Max working PIV 15kV
Max no load PIV 16.5kV
Max DC rectified current 50mA
Max peak anode current 300mA
Max peak pulse anode current 3A
Reservoir capacitor (optimal) 0.25µF
Min limiting source resistance 7500 ohms
Max bulb temperature 200C
Max shock (short duration) 500g
Max acceleration (continuous operation) 2.5g


Connections: The heater/cathode connection is marked red, the other base connection being the heater. The top cap is the anode.