The Sovtek 12AX7WA is a general purpose high-Mu / low-gain Twin Triode with ultra low microphonic, and will work in all circuits requiring 12AU7/ECC82 types.
The Sovtek 12AX7WA is a general purpose high-Mu / low-gain Twin Triode with ultra low microphonic, and will work in all circuits requiring 12AU7/ECC82 types.