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Psvane 6SL7 Classic Series Rør / 1 matched pair Hovedtelefoner Indonesia) orPSVANE 6SL7 Vacuum Tube Upgradat 6H9C 6N9P 5691 ECC35 6SL7GT Electron Tube Amplifier Kit Hifi Audio Valve DIY Factory Matched 6SL7is high amplifier triode tube Uh 6. 3 V Ih 0. 3 A Maximum Rating Anode Voltage 300 V Positive Grid 0 V Anode Disspation 1 W Max Cathode current 120 mA Heater Filament Voltage 90 V Typical Operating Conditions Class A1 Amplifier Ua 250 v Ug 2 v Ia 2. 3 mA Gm 1. 6 mA V ri 44 k 70 Single tube A1 Amplifier Ua 300 500 v