Thanks for the suggestions. I followed them all. I
found some 27 AWG red enamel wire and re-wound RFC1 &
2, and I believe this is what fixed my problem. The
enamel on the wire that came with the KSB2 kit, seemed
to shear off with the sharp edges of the toroid cores,
and this may have been causing a short to the crystal
can. The new wire seemed to be a little thinner, even
though it was smaller guage (27 vs. 28 - go figure),
and the enamel seemed to stay on it a little better.
Perhaps the enamel on the new wire was thinner.
The KSB2 option is now installed, aligned, and
working!
Thanks,
-Andrew KF7HB
--- Ron D'Eau Claire <
[hidden email]> wrote:
> > The problem is that the receiver became very
> quiet. I
> > could still hear the strongest signals if I turn
> the
> > AF Gain way up, and instead of S9 on the meter,
> > they're way down to S1. The KSB2 manual
> specifically
> > states (page 15, final step of "initial test")
> this
> > should not happen, and if it does, to go to the
> troubleshooting
> > section.
>
>
> Andrew: Don's suggestions are right on track. I have
> one to add, assuming
> this is a new build. Check for d-c continuity from
> each pin of each crystal
> to ground. It should be an open circuit for d-c. If
> not then most likely you
> used enough solder to form a small fillet around the
> pad. On the crystal
> side of the pad, the fillet easily shorts the signal
> path to the crystal
> case and so to ground.
>
> If so, then remove the crystal involved, clean off
> the solder, the carefully
> replace it, using a minimum of solder. (Note that
> you have jumpers across a
> couple of capacitor locations, so a short there will
> require that you open
> the jumper to see which crystal is involved).
>
> Ron AC7AC
>
>
>
>
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