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Re: [TenTec] ARGOSY 525 PTO DRIFT?

To: <wb2vuf@qsl.net>,"Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] ARGOSY 525 PTO DRIFT?
From: "Ed Worst" <edworst@att.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 3 Oct 2005 23:39:16 -0500
List-post: <mailto:tentec@contesting.com>
Hi Bob,

I get about +/- 20Hz drift after a half hour of warm up from a cold start.
I think I'll try the PTO rebuild first before modifying the circuit.  Still
have to talk with TenTec to see what they have to say.

Tnx es 73,
ed - k9ew

----- Original Message ----- 
From: "Bwana Bob" <wb2vuf@qsl.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Cc: "QRP-L" <qrp-l@mailman.qth.net>; "TenTec List" <Tentec@mailman.qth.net>
Sent: Monday, October 03, 2005 21:58 PM
Subject: Re: [TenTec] ARGOSY 525 PTO DRIFT?


> Ed:
>
> Try different values for the temperature compensating capacitor. This is
>   selected at the factory, but you may get better results from another
> value. Only trouble is, N750 caps are hard to find, but I think Mouser
> carries them.
>
> 73,
>
> Bob WB2VUF
>
> Ed Worst wrote:
>
> > I tried my Argosy 525 on MFSK tonight, and had to turn switch rigs
because
> > of the PTO drift.  Is there a known problem with PTO drift on this rig?
If
> > there is, what's the fix?
> >
> > Thanks,
> > ed - k9ew
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
>
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