12SN7GTA

Medium-Mu Twin Triode Amplifier Tube, featuring a 12.6V heater filament layout. It integrates two independent, symmetrical triode elements identical in characteristics to the 6SN7GT series, optimized to manage low-frequency sweep oscillations and signal phase inversion within industrial instrumentation and television synchronization networks, housed in a standard large 8-pin Octal-style base glass envelope.