Tube Characteristics Type: 6N7 (6N7GT) Bulb : METAL t-9 Class : MEDIUM-MU TWIN POWER TRIODE, DUODIODE/TRI Base Diagram: 8B Emitter Volts: 6.3 Emitter Amps: 0.8 Use: Power Amp/Driver (Noise Limiter in SP-200) Plate Dissipation (w): 1.1 Plate Volts: 250-300 Negative Grid Volts: 0-6 Plate Current (ma): 7 Plate Resistance (ohm): 11K Transconductance (mho) 3200 Amplification (mu) 35 Ohms load for rated power: 8K Power output (mw): 1000