Why not use a 240v CT to 120v ?  Maybe something like this?

http://www.signaltransformer.com/sites/all/pdf/A41.pdf 
<http://www.signaltransformer.com/sites/all/pdf/A41.pdf>

Use the 240v side as your 12-0-12 and the 120v side as your 12v.

Ian

> On May 3, 2016, at 8:08 PM, Jim Brain <br...@jbrain.com> wrote:
> 
> Anyone here do any transformer specification or design and would be 
> interested in some consulting dollars to help me source/create a weird 
> transformer option?
> 
> What I need is a 12V primary, 12V:12V center tapped secondary that can 
> support 12VA of power.  Higher voltages are OK, but not needed.  I am 
> struggling on the Xformer details, but I know it needs to be center tapped, 
> 1:1:1 @12VA
> 
> Jim
> 
> -- 
> Jim Brain
> br...@jbrain.com
> www.jbrain.com
> 
> 
> 
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