Virtual Valve Museum

Virtual Valve Museum

HomeFull List

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

CV4067 reliable beam tetrode

Size This valve measures 46x17mm overall and has a 7 lead base.


Heater voltage 6.3V
Heater current 450mA
Max anode voltage (Ia=0) 550V
Max screen voltage (Ig2=0) 550V
Max anode voltage 250V
Max screen voltage 250V
Max anode dissipation 5.5W
Max screen dissipation 1.1W
Max cathode current 55mA
Max grid - cathode resistance (fixed bias) 100k ohms
Max grid - cathode resistance (cathode bias) 500k ohms
Max bulb temperature 210C
Max shock (short duration) 500g
Max acceleration (continuous operation) 2.5g
Max operating frequency 50MHz
Mutual conductance * 4.8mA/V
Inner amplification factor (µg1g2) 5.5
Capacitances (in close fitting metal shell)
Cin nom 7.0pF
Cout nom 8.75pF
Ca,g1 max 0.1pF

*: At Va=Vg2=120V; Vg1=0

Pin Function
1 Control grid
2 Cathode and beam plates
3 Heater
4 Heater
5 Anode
6 Screen grid
7 Cathode and beam plates