Tube Characteristics Type: 6SJ7 Bulb : T-9 METAL Class : Sharp Cutoff Pentode Base Diagram: 8N Emitter Volts: 6.3 Emitter Amps: 0.3 Use: RF Amp / Biased Detector Plate Dissipation (w): 2.5 Plate Volts: 250 Negative Grid Volts: 3.0 Screen Volts: 100 Plate Current (ma): 3.0 Screen Current (ma): 0.9 Plate Resistance (ohm): 700K Transconductance: 1650 micromhos