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CV472 low microphony pentode

Size This valve measures 35x9mm overall and has 8 leads.

See also CV476 which is a modified version of this valve, and CV4503 which is based on this valve.

Heater voltage


Heater current 200mA
Max anode voltage (Ia=0) 350V
Max screen voltage (Ig2=0) 350V
Max anode dissipation 1W
Max screen dissipation 400mW
Max operating anode voltage 190V
Max operating screen voltage 190V
Mutual conductance * 3.1mA/V
Anode current * 7mA
Screen current * 2.4mA
Max cathode current 12mA
Capacitances (close fitting metal screen)
Cge nom 4pF
Cae nom 5pF
Cag max 0.15pF
*: At Va=Vg2=100; Vg1=-1.4


Lead Function
1 Heater
2 Anode
3 Cathode
4 Suppressor grid
5 no wire
6 Heater
7 Anode
8 Screen grid
9 no wire
10 Control grid

This file was last modified 23:10:31, Wednesday February 23, 2022