The JAN CHS 6SN7W Metal Base tube was made from 1942-1945.
The metal base Sylvania 6SN7W is regarded as the best sounding USA made 6SN7 variant of all times.
This is a suitable replacement for any 6SN7GT = 6SN7GTA = 6SN7GTB = ECC32 Dual Triode tube type.
We currently have two matched pairs available. $500 per tube