6GF7A

Dissimilar Double Triode Multi-Unit Tube, containing two independent, asymmetric triode elements within a single envelope. Section 1 is engineered as a high-gain blocking oscillator or sweep sync separator, while Section 2 functions as a heavy-duty high-current vertical deflection power amplifier to drive television CRT yoke coils, housed in a standard 9-pin miniature glass envelope (Noval, T-6.5 bulb).