Re: [CAD_CAM_EDM_DRO] Re: Lose A Few Volts

John Hansford wrote:

>Hi Jon,
>
>Thanks very much!
>I understand the diodes, but haven't ever used a transformer
>wired like that. I do see people discussing it, but never
>paid much attention as I thought it was for more commercial
>type applications.
>
>I made a sketch and put it here...
>http://www.flickr.com/photos/26361144@N00/
>
>I'm thinking I understand your directions, but something
>doesn't look quite right. If you get a chance to look, I'd
>be grateful.
>
>

What you have drawn will put 12.6 V to the main transformer.
You need to move the bottom wire on the secondary of the small
transformer to the other mains wire. Then it will be adding or
subtracting 12.6 V from the mains voltage, which is what you want.

Jon