The 5751 is simply a lower gain version of the 12AX7. It will not do any harm in the circuit and is a direct replacement.
Like it better? Only you will be able to make that decission.
Like it better? Only you will be able to make that decission.
Jolida jd-502p
Anyone using 5751 tube to replace 12ax7's in a Jolida. I have read that it may not work well with some circuit designs. Also curious about what other Jolida users are using?