[R-390] R-390 slugs

[Barry Hauser]

Greetings Gang:

I don't know if the weighing approach is the best first step.  As I recall,
we found a variety of color marks on the non-A slugs with no particular
pattern to which was used where.  Then, someone reported first-hand
knowledge that these were cherry-picked and/or hand matched to the coil they
were to go in.  That seemed to end the thread, if I remember right.

What about this?  Hook up a reference coil to a Q-meter and use a caliper or
something to control vertical position.  Then read Q and resonant frequency
for an assortment of slugs at various positions in the coil.  Maybe figure
out a pattern to those colors and then weigh them.

Any thoughts?

Barry


Jim Temple wrote:
>
> > Well, I have been going over the Yahoo archives and it seems that there
is
> > no easy way to judge what slugs and coils match in the R-390.  There was
> > considerable discussion about color codes, etc.  Everything you ever
wanted
> > to know about R-390 slugs is discussed in the April 1999 time frame,
give or
> > take a couple of months, in the Yahoo archives, except the final,
definitive
> > answer.  So it seems there is no real answer, beyong going back in time
to
> > question the manufacturers of these items. :-)
> >
> > Jim
>
Paul Anderson wrote:

> It seems to me that a slug is a bunch of iron powder in a binder.  How
> tough would it be to dissolve the binder, then weigh the powder to see how
> much it takes, then make new ones?  Hmm... I've got a gunpowder scale...
> maybe time to weigh the slugs themselves with binder to see if I can get
> weight differences.
>
> Paul
>
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