Working on a 4-channel tube preamp layout, and I'm trying really hard to get the PSU inside the case without noise problems. External PSU increases the cost way too much.
My 2-channel version required a bit of MuMetal to quiet it down, but I'm trying some different PSU transformer types.
Let me know if you see any pitfalls in this design.
My 2-channel version required a bit of MuMetal to quiet it down, but I'm trying some different PSU transformer types.
Let me know if you see any pitfalls in this design.