Homebrew PCBs

You left out the next sound that occurred. It began with "oh" ... :)

--- In Homebrew_PCBs@yahoogroups.com, Paul Mateer <paul.aa9gg@...> wrote:
>
> zzzzzzZZZZZZAAAAAPPPPPP!!!!!!!!!!!!!!!!!
> 
> On 3/9/10, awakephd <a_wake@...> wrote:
> > I'm not sure what the big deal is about printed-on fuses. I've done that
> > many times -- in fact just the other day, when I made a bone-headed
> > connection on the 170V PWM motor control board I was working on, several
> > traces turned into instant fuses!
> >
> > I'm embarrassed to confess that I forgot that the "ground" on the board was
> > NOT at the level of ground in the wall when I attached the ground lead from
> > the o-scope. Fortunately the board "fused" rather than the o-scope. It
> > destroyed two IC's on the board in the process, but that was a small price
> > to pay compared to fixing or replacing the scope!
> >
> > And yes ... the board went in the trash and I started over -- much more
> > carefully this time! And yes, the new board works perfectly.

> -- 
> Paul Mateer, AA9GG
> Elan Engineering Corp.
> www.elanengr.com
> NAQCC 3123, SKCC 4628, FPQRP 2003
>