Virtual Valve Museum

Virtual Valve Museum

HomeFull List

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

CV4014 reliable HF pentode

Size This valve measures 53x17mm overall and has a B7G base.

The wire lead equivalent of this valve is CV4002; the prototype is CV138; see also CV2000 which is a modified version, and CV4114 which is a CV4014 with gold plated pins.

Heater voltage 6.3V
Heater current 0.3A
Max heater to cathode voltage +/-150V
Max anode voltage (Wa=3) 300V
Max anode voltage (Ia=0) 550V
Max anode dissipation 3W
Max screen voltage (Wg2=0.9) 300V
Max screen voltage (Ig2=0) 450V
Max screen dissipation 0.9W
Max bulb temperature 200C
Max shock (short duration) 500g
Max acceleration (continuous operation) 2.5g
Typical operating conditions (Va=Vg2=250V; Vg1=-2V; Vg3=0)
Anode current 10mA
Screen current 2.5mA
Mutual conductance 7.6mA/V
Inner amplification factor 75


Pin Function
1 G1
2 Cathode
3 Heater
4 Heater
5 Anode
6 G3 + shield
7 G2