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CV4038 reliable low impedance triode

Size This valve measures 64x20mm overall plus leads, and has 9 leads.

This valve is suitable for series stabiliser service.

Heater voltage 6.3V
Heater current 950mA
Max anode voltage 300V
Max anode voltage (Ia=0) 500V
Max cathode current 120mA
Max anode dissipation 15W
Max heater/cathode voltage (cathode +ve) 250V
Mutual conductance * 12.0mA/V
Anode impedance * 375 ohms
Amplification factor * 4.5
Max bulb temperature 225C
Max shock (short duration) 500g
Max acceleration (continuous operation) 2.5g
Capacitances (measured without shield)
Cag nom 10.0pF
Cin nom 6.8pF
Cout nom 3.0pF
*: At Va=150, Ia=100mA


Lead Function
1 i/c
2 Cathode
3 Anode
4 Heater
5 Heater
6 Grid
7 i/c
8 i/c
9 Anode

This file was last modified 23:10:28, Wednesday February 23, 2022