Torodial transformer - help with secondary windings

[pvh1987]

I need some help with secondary windings on a torodial transformer.

I have a 80VA torodial transformer with 2300 primary windings (it is made for 230V-50Hz on the primary). I want to make several secondaries, 2x33V, 2x18V and 1x8V - that is 5 secondaries

1. I suppose that for winding 2x33V, I can wind both 33V windings at once, by winding two wires at once counting 330 windings from 0 to 360 degrees. If the wire diameter is too thick compared to the inner diameter of the torodial to allow that, I can wind the windings so that some of the windings overlap?

2. Does the windings have to go from 0 degrees to 360 degrees? Can I wind two times around the torodial - from 0 degrees to 720 degrees, counting 330 windings total and still get 33V output?

[sawreyrw]

1. Yes, the windings can overlap. In theory this will not effect the transformer; in practice it won't make much difference at 50 or 60 Hz.
2. This question seems redundant, but you can put multiple layers of turns.

[seebert]

I wound a lot of toroids for PSU's back in the 70's and found that it didn't make the slightest discernable audio difference when overlapping windings ... and windings upon windings; there's just so much space and so long as the windings are 'tight and close' (i.e. not like a typical RF excluding ferrite ring) most everything else didn't effect performance.