Toroidal transformer replacement

[yossi]

I want to replace a dead subwoofer transformer with a toroidal one. The original transformer was a 230V/12V 2.5A.

So far I've only been able to find dual secondaries torodial transformers. I understand their rating refers to the total output, so if I'm going to use just one secondary winding I'll be looking for a 60VA transformer (expecting 30VA).

My question - would it be possible to just connect both secondaries to the same rectifier circuit? My assumption is that won't work because of phase, but I would be really happy to know if that's correct. Thanks!

 

[Tha fios agaibh]

would it be possible to just connect both secondaries to the same rectifier circuit? My assumption is that won't work

Yes, just parallel the secondaries to double the va output. That is provided they share the same primary.

 

[Minder]

In general, identical secondaries are wound bi-filar, which essentially means they will be balanced when connected in parallel.
They each have to be in phase however!
This is generally indicated by the start of each winding.
M.