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Re: [Amps] Bird 43P Stopped Working

To: Jeff DePolo <jd0@broadsci.com>
Subject: Re: [Amps] Bird 43P Stopped Working
From: Jay Sturtevant <k2ztdx@gmail.com>
Date: Tue, 17 Nov 2020 23:46:45 -0500
List-post: <mailto:amps@contesting.com>
Thank you all for your help!

I very carefully wiped the finger in the line section with the smallest
amount possible of Deoxit, reinserted the 2500H slug and rotated it several
times.

The meter now works again!

I appreciate all of your direction!

Jay, K2ZT

On Sun, Nov 15, 2020, 6:23 PM Jeff DePolo <jd0@broadsci.com> wrote:

>
> > I think the slug contact in the line section may be at fault, or maybe
> the
> > coaxial pigtail.
>
> The slug contacts are silver-plated, but can still result in intermittent
> contact if not "wiped" by a rotating slug now and then.  If it's been
> sitting a long time, they may just need some TLC with a gentle cleaning
> using IPA or contact cleaner.
>
> The "DC" (directional coupler) connector for Bird line sections is
> notorious
> for developing a poor connection, either at the contact interface between
> the connector and the line section, or where the center conductor of the
> coax is inserted through the spring-like center pin contact.  If cleaning
> the interface doesn't fix it, you may have to take apart the connector (it
> will likely be obvious how to do so), cut off and re-prep the end of the
> coax, and insert and re-assemble.
>
> If none of those fix it, there's a possibility that the meter movement is
> bad, but from my experience, that's the least-likely suspect given the
> symptoms you've described.
>
>                                         --- Jeff WN3A
>
>
>
> --
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>
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