6N13S 6Н13С 6N5S 6AS7G Soviet Double Triode Tube Used
Anode current of each triode nominal 80 ± 32 mA. Cathode current of each triode limit 130 mA. The power dissipated by the anode of each triode, maximum 13 W. Resistance in the grid circuit of each triode limit 1 MW.