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CV2000 HF pentode

Size This valve measures 56x21mm overall, not including the wires, and has 7 connections plus one to the central spigot.

This valve is a CV4002 (CV4014 is the pinned version) with a special base. The prototype is CV138. See also CV2031 which is a special version of the CV2000.

Heater voltage 6.3V
Heater current 300mA
Max heater-cathode voltage +/- 150V
Max anode voltage (Wa=3.0) 300V
Max anode voltage (Ia=0) 550V
Max anode dissipation 3.0W
Max screen voltage (Wg2=0.9) 300V
Max screen voltage (Ig2=0) 450V
Max screen dissipation 0.9W
Typical operating conditions
Va=Vg2=250V; Vg1=-2V; Vg3=0
Anode current 10mA
Screen current 2.5mA
Mutual conductance 7.6mA/V
Amplification factor 75

 

Pin Function
1 Control grid
2 Cathode
3 Heater
4 Heater
5 Anode
6 Suppressor grid + shield
7 Screen grid

 

CV2000

The valve below is marked CV2000 and EF91. The CV2000 label is clearly incorrect. See EF91.

CV2000/EF91 (incorrect spec)
Bottom quarter view

This file was last modified 15:00:52, Tuesday September 02, 2014

  FOR SALE: Note that any valve which is not CV marked is now for sale. Contact me via email - see the home page.