Please don’t get me wrong, the Jupiter is still an awesome radio. They just
should have done the dials better.
James Viars
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com] On
Behalf Of Walt Amos
Sent: Wednesday, April 14, 2010 5:05 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Encoder shaft stability
AH, makes you want to get out the old check book and really order one RIGHT
AWAY ................
Walt K8CV Royal Oak, MI.
----- Original Message -----
From: <james.viars@comcast.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Wednesday, April 14, 2010 11:08 AM
Subject: Re: [TenTec] Encoder shaft stability
>
>
> Sounds good. All the dial shafts of my Jupiter have some sort of flex to
> them: VFO, xit/rit, multi, etc...
>
>
>
> I have tried a few different things to keep out the wobble, but to no
> avail. The most annoying thing is that the tension on each smaller dial is
> different. Actually, the PBT dial SQUEEKS!!
>
>
>
>
>
> James
>
> N4EGA
>
>
>
>
> ----- Original Message -----
> From: "Phil Chambley Sr." <k4dpk@comcast.net>
> To: tentec@contesting.com
> Sent: Tuesday, April 13, 2010 7:23:53 PM GMT -05:00 US/Canada Eastern
> Subject: [TenTec] Encoder shaft stability
>
> I've been toying with an idea and would appreciate input from the group.
>
>
>
> Haven't had any experience with the Orions yet, but every on other T/T rig
> with an encoder, I've seen varying amounts of encoder shaft wobble. If you
> lift up on the front of the knob, it'll move noticeably and irritatingly
> (at least to me).
>
>
>
> The reason for this is T/T relies on the encoder bushing alone to serve as
> the only bearing surface, and that single-point bearing allows lateral
> "wiggle". I think we can give the encoder a two-point support with just a
> minimum amount of effort.
>
>
>
> What I have in mind is a circular piece of say, 1/16" Teflon sheet, about
> 1 ½" diameter, with a ¼" hole in the center. Using a nibbler, cut out a
> bite every ¼" or so from inside of the hole so small "fingers" would be
> left to contact the shaft. This would encircle and hold the shaft and
> still have only a minimum of surface contact area.
>
>
>
> Then attach the Teflon disc under the knob to the plastic bezel using pins
> or #2 machine screws. The latter would be placed outside the track of the
> tension arrangement.
>
>
>
> Comments please?? Better idea anyone?
>
>
>
> Phil C. Sr.
>
> k4dpk
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>
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