[R-390] R-390A tuning question.

Sun, 15 Sep 2002 19:47:45 -0700

Hi,  this answers a question and  reminds me of a gripe I had about my 390a after
I cleaned it and lubed it with SouperSlick.  When I let go of the kc knob,  it
went all the way to one end of the tuning range by itself.  I added some thicker
oil to prevent this !!!  Friction has a legitimate purpose most of the time
despite our disdain for it . Thank goodness,  SouperSlick is off the market and
that's one less headache to deal with.  tmsaisti.  Dan.

"Tom M." wrote:

> Gentlemen?
>
> Phil is noticing this because his geartrain is slick and clean.
>
> If the geartrain is more "normal" then it probably is not noticeable.
>
> This phenomenon can be demonstrated easily when the RF deck is half taken
> apart, and during alignment of the cams.  Cam alignment is best done with the
> springs off as the spring tension alone is enough to cause turning in the
> shafts (but generally not when it is all put together).
>
> Props to Phil for having a slick system.  I wish I had the same problem.
>
> 73 Tom N5OFF
> --- scott <[email protected]> wrote:
> > > Has anyone else ever noticed this anomaly?  Cause?  Cure?
> > >
> > > 73 de Phil  KO6BB
> >
> >
> > Should not be any noticable difference.  The gearing makes
> > the resistance of the springs insignificant.  The only thing
> > I can see is your wrist is stronger turning in one direction
> > than the other.  Ask someone else to try and see if they
> > notice any difference.
> >
> > Scott
> >
> >
> >
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