I remember reading that article, but let me toss this out
those bad jumpy PTOs left the factory with a defect,
I don’t feel after 34 years of operation, that factory defect would raise its
ugly head.
An old mod was to use a safety pin to ground the PTO shaft. Putting the shaft
at ground potential. There is enough ‘spring’ in the safety pin to apply
pressure to the shaft. It fastens to the chassis with one of the PTO mounting
screws.
Mike, WB8VGE
www.theheathkitshop.com
> On Sep 29, 2020, at 9:00 PM, Reuben Burch <wa4zen@gmail.com> wrote:
>
> I had asked about a problem where my Argosy II "jumps" frequency
> randomly. I happened upon an article in the November 1986 issue of Ham
> Radio titled "Upgrading the Tentec Argosy" where this issue is briefly
> addressed. The author, KW7CD, indicates that this isn't a mechanical
> problem and that, at the time, Tentec would swap your bad PTO for one
> that doesn't have the problem for a fee. He doesn't mention the cause
> of the problem nor the fix. Is anyone familiar with this? What was
> done to the PTO to fix the problem?
>
> 73,
> Reuben
> WA4ZEN
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