Virtual Valve Museum

Virtual Valve Museum
HomeFull List

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

CV1438 beam tetrode

Size This valve measures 118x45mm overall and has an octal base.

Heater voltage6.3V
Heater current950mA
Max anode voltage275V
Max screen voltage275V
Max anode dissipation10W
Amplification factor *27
Anode impedance *2750 ohms
Mutual conductance *10.5mA/V
Capacitances
Cge17.5pF
Cae0.8pF
Cag1.2pF

*: At Va=Vg2=250, Ia=40mA

PinFunction
1n/c
2Heater
3Anode
4Screen grid
5Control grid
6no pin
7Heater
8Cathode
 CV1438