NR86 HF tetrode
 |
This valve measures 115x35mm |
The prototype is KTW63.
| Heater voltage |
6.3V |
| Heater current |
300mA |
| Max anode voltage |
250V |
| Max screen voltage |
125V |
| Mutual conductance (Va=250, Vg2=125, Vg1=0) |
1.5mA/V |
| Capacitances (with external screen) |
| Cag max |
0.006pF |
| Cae |
7.5pF |
| Cge |
4.7pF |
| Pin |
Function |
| 1 |
n/c |
| 2 |
Heater |
| 3 |
Anode |
| 4 |
Screen grid |
| 5 |
n/c |
| 6 |
no pin |
| 7 |
Heater |
| 8 |
Cathode |
| TC |
Control grid |
|
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