Virtual Valve Museum

Virtual Valve Museum

HomeFull List

This is an archive website. It will not receive any updates, additions or corrections.

CV1931 double diode

Size This valve measures 40x32mm overall and has an octal base.

The metal valve is marked CV1931 but this must be an error. The CV Register shows 6H6, which this would be to be CV1930. The glass valve, also marked CV1931 is presumably correct.

Heater voltage 6.3V
Heater current 300mA
Max PIV 420V
Max peak cathode current 2x 48mA
Max RMS anode voltage 2x 150V
DC output current 2x 8mA


Pin Function
1 Shell + shield
2 Heater
3 Anode "
4 Cathode "
5 Anode '
6 no pin
7 Heater
8 Cathode '