6DE7

Miniature 9-pin dual triode with dissimilar sections containing a medium-mu oscillator triode and a low-mu, high-current power triode designed for television vertical deflection circuits. Equivalents: 10DE7, 13DE7 (different heater voltages). Real-Life Examples: RCA and Admiral console color televisions, custom high-end Woo Audio WA6 headphone amplifiers.