Re: Lose A Few Volts

Jon,
Thanks for the help on this. I really appreciate it.
I redid the picture.....

http://www.flickr.com/photos/26361144@N00/

I did a good bit of searching on how it works, but never did
find the first diagram. I did find several using autotransformers
but none like this.

The small transformer in the sketch is a common radio shack
"power" transformer....is that o.k. ?

And I may have to flip-flop the secondaries because it could
be either adding or subtracting.

I think I've got it now. I am surprised that I couldn't find
this done anywhere else, seems pretty useful to me.

Thanks Jon
John

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@...> wrote:
>
> 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
>