[Main settings]
Heating voltage 6.3V
Filament current 760 mA
Anode current 36 ... 60 mA
Cathode current 65 mA
Second grid current 5.5 mA
Voltage on the second grid 300 V
Slope 9 ... 13.6 mA/V
THD 10%
Output power with resistance in the anode circuit 5.2 kOhm 5.3 W
Internal resistance 30 kOhm
Leakage current between cathode and heater 25 uA
Input capacitance 11pF
Output capacitance 6pF
Through capacitance 0.5 pF
Operating time 800 hc