[R-390] Tuning the IF question

[David Wise]

All the information supplied so far is correct, but I don't
think anyone answered Paolo's implied question.  The answer
is, a metal tool will change the coil inductance.  Always
use a plastic alignment tool.

Dave Wise

> -----Original Message-----
> From: Mark Huss [mailto:mhuss1 at bellatlantic.net]
> 
> Go to Radio Shack and buy the Alignment Tool Set.  You will 
>
> paolo gramigna wrote:
> 
> >Hi all,
> >I'm trying to tune up my first R-390A. I have the manuals.
> >When i came to the IF tuning, the manual says that each 
> trsnsformer has two
> >lugs; the primary in the bottom, the secondary in the top. 
> The problem is,
> >how can i reach the bottom one? There is no hole in the IF 
> module chassis;
> >to reach the bottom lug, i have to remove the top one; and so the
> >transformer goes so much out of tune that no reading is 
> possible on the
> >VTVM. Where am I wrong?