6J32P Datasheet: Filament voltage 6.3 ± 0.6 V Filament current 0.2 ± 0.015 A Anode voltage nominal (constant) 250 V Anode voltage limit (constant) 300 V Anode current 3 ± 1 mA Cathode current limit 6 mA Grid voltage of the first nominal (constant) -2 V The grid voltage of the first is the smallest -1.4 V Grid voltage of the second nominal (constant) 140 V Grid voltage of the second limit (constant) 200 V The second grid current is not more than 1 mA The power dissipated by the anode, the maximum 1 W The power dissipated by the second grid, the maximum 0.2 W Limit (constant) voltage between cathode and heater: - at negative potential of the heater 100 V - with a positive potential of the heater 50 V 1.8 ± 0.5 mA / V slope Internal resistance 2.5 MΩ Resistance in the grid circuit of the first limit 3 MΩ Input capacitance of about 4 pF Output capacitance of about 5.5 pF Capacity is not more than 0.05 pF