Re: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?

Is that an isolation transformer, or an auto-'former? (DON'T use an
auto-'former as a power supply). Make sure your DC bridge is set up for the
proper polarity, and make sure that ( - ) is 'ground'.

RayHex

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> From: turbulatordude <davemucha@...>
>
> I may have not been clear.
>
> I have a 15 amp x-frmer, wired for 23 volts, 68,000 uF/100V cap
> INSIDE of an old PC case.
>
> http://photos.groups.yahoo.com/group/cad_cam_edm_dro/vwp?.dir=/Daves+U
> nit&.src=gr&.dnm=68k+cap.jpg
>
> photo's-> daves unit-> 68k cap is a picture of it. when I started
> putting it together.
>
> The PC and the power supply case both are grounded to the wall outlet.
>
> I did find where on the Gecko's the stuff burnt.
>
> the large floating cap Radial lead, the end that is connected to the
> board, not the end connected to the axial cap.
>
> and a resistor labled 474 center of the board, opposite the
> terminal. if you hold the board with the terminal away, it is the
> last resistor in the row nearest the center of the board, can closest
> to the board edge.
>
> no traces burnt so at least there is some faint hope.