Just a quick check before I buy too many or too few volts.

Needing a new toiroid for the lathe, and need to keep below 50V (limit of the Geckos), so aiming for 46V(ish) sounds good to me, and gives me about a 10V increase.

So, with those figures, and ye olde root2, means in a perfect world I need about 32V, but giving an allowance for mains drift, does a toiroid secondary of 30V sound good?

Also, is there any practical difference between going for 2x15, or 2x30 secondaries?