Filament voltage in case of series connection, Volt |
6.3 |
Filament voltage with filament placed in parallel, Volt |
12.6 |
Anode voltage, Volt |
350 |
1st grid voltage, Volt |
-22 |
2nd grid voltage, Volt |
200 |
Filament (heater) current in case of series connection, A |
1.05�0.15 |
Filament (heater) current with filament placed in parallel, A |
2.1�0.3 |
Anode current of each tetrode, mA |
47.5�17.5 |
2nd grid current (UC1=0V), mA |
no more than 60 |
Gain coefficient of 1st grid relatively to 2nd
grid |
10 |
Reverse 1st grid current, mkA |
no more than 0,5 |
Vibration noise (at RA=2 kOhm), mV |
no more than 800 |
Inter electrode capacitance, pF: |
|
input |
13�3 |
output |
6�2 |
transfer |
no more than 0,3 |
Operation time, h |
≥1000 |