[Heathkit] HR-1680 Assistance Requested

[Ken Woodside, WB8EQO]

Hi and Happy Holidays To All!

I picked up an HR-1680 recently and have some
questions about a few problem areas...

The main tuning system squeals when turned and does
anyone know what to lube it with and where to lube it?
I hesitate to soak it with WD40! Can I use snake oil?

The tuning has about 10 kc of slop. What I mean is
when you tune past a signal and want to return to it.
For instance, I tune past a CW signal about 5 degrees
of knob rotation and when I reverse and go back, I
have to turn the tuning knob about 15 degrees. Is this
called backlash? It is a lot like sloppy steering in a
1960's car. 

Does anyone know how this tuning thing works? Are
there gears in there? Can I rebuild it? I assume there
is no comparable modern replacement.

Poor sensitivity...  And audio responses to touching
the case even when grounded.

Thank you all so much for the support I have received
in the past! My best to all.

My thanks to Duane for handling these several
reflectors! And my support continues to Al for making
all this possible!

Ken Woodside
WB8EQO

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