Supply voltage: 6.3 V
Heater-cathode voltage, peak: 200 V
Filament current: 210 mA
Anode voltage: 30000 V
Anode dissipation: 37.5 W
Anode current: 2.0 mA
Grid voltage: -450 V
Amplification factor: 2750
Length of the tube: 125 mm
Diameter of the tube: 46 mm
Lifetime: not less 1500 hours