Filament voltage 6.3 ± 0.6 V
Filament current 500 ± 40 mA
Nominal anode voltage 250 V
Anode voltage limit 250 V
Anode current 44 ± 11 mA
Cathode current limit 70 mA
Grid voltage first -12.5 V
Reverse current of the first grid is not more than 1.0 μA
Grid voltage second rated 250 V
The second limit grid voltage is 250 V
The second grid current is not more than 7 mA
Power dissipated by the anode, limiting 12 W
The power dissipated by the second grid, limiting 2.5 W
Voltage between cathode and heater limit 100 V
Steepness 4.9 ± 1.1 mA / V
Internal resistance 42.5 ± 22.5 kΩ
Output power not less than 3.8 W
Total Harmonic Distortion 14%
Resistance in the grid circuit of the first limiting 0.5 MΩ
Input capacitance 9.5 pF
Output capacitance 5.4 pF
Passage capacity no more than 0.7 pF
Condition.
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