6SF5 TUBE -Experience Pure Analog Sound with our Premium Vacuum Tube for High-Fidelity Audio Systems – Big River Hardware
6SF5 High Mu Triode Tube. Designed for service as a high gain audio-frequency amplifier and is especially useful in resistance-coupled amplifier circuits in AC or DC operated equipment. MFR: GE, Tung-Sol, Westinghouse,
Substituting 12AX7 for 6SF5
Operating Points of Fi 2A3 / 3 Tube 3 Watt Direct Coupled Amplifier (Lipman) | diyAudio
6SF5 driver for 300B/GM70/813 SE Amps – Bartola® Valves