Toroidal transformer voltages - sanity check needed!

[Web Goblin]

The only thing to watch out for is the VA rating. Most toroid transformers split their rating with their windings. Say a 300VA transformer with a single secondary would be rated at 300VA, but if it has two secondaries it would be 150VA per winding. This might make a bit of difference for your selection process.

Ian

[Jonathan]

M_c will be using both windings though (in either series or parallel), so will still get the full rating of the transformer.