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Re: [TenTec] Jupiter Solid Aluminum Main Tuning Dial

To: tentec@contesting.com
Subject: Re: [TenTec] Jupiter Solid Aluminum Main Tuning Dial
From: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Reply-to: geraldj@weather.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 12 Apr 2010 09:45:40 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
I'd think that the side thrust from running a finger just under the knob 
could be greater, and that if sometimes the hand griping the knob was 
supported by the knob more than the arm muscles that the side thrust 
would be greater than the weight of the aluminum knob. Both values are 
hard to quantify.

I'm sure that mounting an outboard bearing inside the aluminum knob 
would be no more difficult for a machinist than mounting a gear 
reduction knob on a Collins 75A4 should encoder lift prove to be shortened.

73, Jerry, K0CQ

On 4/12/2010 5:56 AM, David Goncalves wrote:
> Hey Guys,
>
> Do these radios have an intermediate coupling shaft from the front panel to
> the encoder, or is the knob connected right onto the encoder shaft? If so,
> any concerns about cantilevering a larger mass onto that shaft and
> potentially increasing wear on that component?
>
> David Goncalves
> W1EUJ
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