Toroidal Transformer connecting to dual 12v input amplifer circuits.

Hi, I am playing around with amplifier circuits. I have a preamp circuit and a power amp circuit. Both of these require 'dual' 12v AC inputs. My question is how do I connect a Toroidal 220v primary transformer with 3 secondary output wires (yellow, black, yellow) Do I need a 6-0-6 output transformer (as the two 6v combine to make 12v) or do I use a 12-0-12 as the two 12v supplies are not combined? I just need to be sure I'm not going to inadvertently blow everything up.

These are the preamp, power amp, and transformer I am wishing to use. I do not require advice regarding the products themselves, these are what I want to use. I just need advice regarding the transformer and connecting it to provide 12v AC to each of these units. Thanks in advance.

If the amplifiers need dual 12Vac supplies, then the transformer should be 12-0-12.

Ebay knows nothing about electronics. The no-name-brand preamp does not say it needs a dual DC supply or a dual AC supply.
The transformer produces only AC, not DC.

crutschow said:

If the amplifiers need dual 12Vac supplies, then the transformer should be 12-0-12.

Click to expand...

Thank you for your nice simple answer.

audioguru said:

Ebay knows nothing about electronics. The no-name-brand preamp does not say it needs a dual DC supply or a dual AC supply.
The transformer produces only AC, not DC.

Click to expand...

The board appears to have a rectifier integrated into it, so I would think you could use either.

From the photos, Both The Power Amp and the Preamp are designed for a x - 0 - x AC input, so a 12-0-12 or a 15-0-15 ac input should be fine.