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