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Re: [TenTec] Scout PTO question

To: geraldj@storm.weather.net,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Scout PTO question
From: Bwana Bob <wb2vuf@qsl.net>
Reply-to: wb2vuf@qsl.net,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 25 Jun 2006 16:05:27 -0400
List-post: <mailto:tentec@contesting.com>
The Scout PTO is different from the other PTO's. The principle is the 
same, but the components are different and it does not have an 
adjustable preload, except for some plastic spacers on the spring shaft 
that set the spring tension.

                                Bob WB2VUF

Dr. Gerald N. Johnson wrote:
> On Tue, 2006-05-02 at 21:07 -0400, Bwana Bob wrote:
>>Has anyone tried removing one or two of the plastic spacers that are on 
>>the PTO spring shaft? I am wondering if the PTO would tune more smoothly 
>>if there was a little less spring tension. Mine seems to have too much 
>>tension. When I tune lower in frequency, the let go of the tuning knob, 
>>the PTO springs back up frequency by about 100 Hz. Most annoying.
>>                      Bob WB2VUF
> Probably needs a bit more preload on the shaft bearings. Another brass
> washer at the back thrust washer location. I rebuilt the PTO in my
> Corsair II and left out one and it does the same thing. Less spring
> tension at one end of the band may lead to no spring tension and then
> the nut rattles on the lead screw at the other end of the band.
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