Unless you have a good loupe, or stereo microscope....I wouldn't touch it.
On the other hand....a replacement from TT can't be too expensive??
...Dave
----- Original Message -----
From: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
To: <tentec@contesting.com>
Sent: Sunday, July 22, 2007 9:34 PM
Subject: Re: [TenTec] Argonaut V Meter Needle Sticking
> On Sun, 2007-07-22 at 16:17 -0500, Reed wrote:
>> Has anyone had a problem with the needle sticking at times? I removed
>> front cover & it will still do it. A light tap on rig will release it.
>>
> If it sticks with the front cover off, its not static electricity from
> the front cover. But wiping it with pure dishwashing detergent is a way
> to kill that static.
>
>> I checked for dust or anything else in the movement of needle & it looks
>> clean. Took air can & lightly blew some air inside of movement & this
>> did not help. Doesn't always stick at same place.
>>
> Probably has a bit of magnetic dust in the air gap and that's anchored
> better than a bit of air will move out. You may have to use a strong
> light and lots of magnification to find it, then slide in adhesive tape
> to grab the steel sliver.
>
> Be sure the needle isn't dragging on the scale or the edge of the scale.
> Bend the pointer with a couple tooth picks and do that gently. Things
> like fingers against meter parts usually means the destruction of the
> meter.
>
>> Wondering if anyone might have a fix for this or is this just a bad meter
>> going out?
>>
>> Thanks,
>> Reed W4JZ
>
> --
> 73, Jerry, K0CQ,
> All content copyright Dr. Gerald N. Johnson, electrical engineer
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|