Re: blown Gecko - shorted output ?

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.

Dave



--- In CAD_CAM_EDM_DRO@yahoogroups.com, Alan Marconett KM6VV
<KM6VV@a...> wrote:

> Hi Dave,
>
> First, If you're using a PC for the motor power supply, GET RID OF

IT!

> Not enough voltage, transformer less, and it's reguated. Now

regulated

> might not be too bad, but a liner supply is no more then a xfmr,

bridge

> and cap (OK, some fuzes, etc.). If you care enough to buy Geckos...
>
> HTH
>
> Alan KM6VV
>
>
> "turbulatordude " wrote:
> >
> > Hi all,
> >
> > I blew us a couple Gecko 201's over the last week. Yeah, I'm
> > thinking of pre-purchasing some of the more bullet proof ones when
> > available.
> > <SNIP>
> > Power supply is an old PC box and is grounded to the 110VAC. same
> > wall outlet as the PC.
> > <SNIP>
> > PC is powered 110VAC, and I did have it in another wall outlet,
> > didn't check if it was on the same phase or a different phase.
> >
> > HELP !!!
> >
> > Dave