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Re: [TenTec] Omni 6 tuning drag

To: <tentec@contesting.com>
Subject: Re: [TenTec] Omni 6 tuning drag
From: "Chuck Guenther" <ni0c@earthlink.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sat, 12 Mar 2005 17:24:04 -0600
List-post: <mailto:tentec@contesting.com>
[Sorry everyone for my  previous post with wrong Subject heading]


Jerry,
My Omni VI knob has too much drag, and I can't seem to reduce it.  In
addition, the knob has begun to make a horrible vibration noise every ten
turns or so, especially when I spin it fast.  I'm wondering if this is a
symptom of a bad bearing in the encoder.  Also, please answer, if you will,
this stupid question:  How do you take the tuning knob off ?  I don't see
any set screws, and don't want to put a lot of force on it until I know
exactly what I'm doing.

Thanks & 73,
Chuck  NI0C


> The slip clutch arrangement works just fine if the knob is set up
> properly to begin with. It has been used on a number of Ten-Tec rigs.
>
> An interesting excercise is to take the knob totally off so that you can
> see how the clutch works and its range of motion. Then set it so that
> the two clutch pads are as retracted as possible and then reinstall the
> knob pressing in to the point just before the pads begin to cause drag.
> You can now add additional drag by holding the slip ring with one hand
> and turning the knob with the other.
>
> Now one thing I will mention. I personally don't like any drag myself so
> all my Ten-Tec knobs are set loose. However I don't know about the
> previous owner of my Omni-VI Plus, I do know that the main encoder
> bearing is shot and that I had to install a new encoder and they are
> expensive! I suspect the more drag you set the more wear this bearing
> will endure. Just a thought.
>
> Jerry, KG6TT
>
>
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