[Heathkit] HR-1680 Assistance Requested

[Bwana Bob]

Ken:

Don't use WD-40. Use a good quality grease. It sounds like the vernier
drive is worn out. If I remember correctly, the receiver used 1 or 2 6:1
ball bearing reduction drives. Try lubing it first, but if you still
have the backlash it will have to be replaced. For replacements try Oak
Hills Research or Ocean State Electronics.

				73,

				Bob WB2VUF

"Ken Woodside, WB8EQO" wrote:
> 
> 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
> 
> __________________________________
> Do you Yahoo!?
> New Yahoo! Photos - easier uploading and sharing.
> http://photos.yahoo.com/
> _______________________________________________
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer@usol.com **
> $$ See the vintage area on the HCI web site - http://www.w9wze.org $$
> Heathkit mailing list
> Heathkit@mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/heathkit