CV4508 short suppressor base pentode
 |
This valve measures 30x10mm overall and has a B8D base. |
This valve is based on the CV467.
| Heater voltage |
6.3V |
| Heater current |
175mA |
| Max heater cathode voltage |
100V |
| Max anode voltage, Ia=0 |
350V |
| Max screen voltage, Ig2=0 |
350V |
| Max operating anode voltage |
190V |
| Max operating screen voltage |
190V |
| Max anode dissipation |
1W |
| Max screen dissipation |
400mW |
| Max cathode current |
12mA |
| Max vibration (100 hours max) |
5g |
| Max vibration (10 mins max) |
20g |
| Max shock (short duration) |
500g |
| Max bulb temperature |
165C |
| Min operating pressure |
55mm Hg |
| Typical operating conditions (Va=Vg2=100, Vg1=-2, Vg3=0) |
| Anode current |
3mA |
| Screen current |
2.25mA |
| Mutual conductance |
2.5mA/V |
| Inner amplification factor |
34 |
| Mutual conductance, G3 (Vg3=-2) |
0.35mA/V |
| Capacitances (shielded) |
| Cin nom |
4.2pF |
| Cout nom |
3.1pF |
| Ca,g1 max |
0.015pF |
| Ca,g3 max |
3pF |
| Cg3,all nom |
6.5pF |
|
| Pin |
Function |
| 1 |
Control grid |
| 2 |
Suppressor grid |
| 3 |
Heater |
| 4 |
Suppressor grid |
| 5 |
Anode |
| 6 |
Heater |
| 7 |
Screen grid |
| 8 |
Cathode |
|
