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Old 19th Sep 2022, 10:32 am   #3048
The Philpott
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Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,108
Default Re: AVO Multimeter survey

If you are completely sure it's lack of wiper pressure (and not dulling of the contact between the battery contact blade and brass shaft) then....

If the movement has all it's connexions removed (and also 1 or 2 obstructing wires removed) then i THINK that lifting out the movement also lifts out the crescent shaped pot winding. This then gives you freedom to bend the wiper towards you....with no need to de-solder it from the shaft.

You also have access to check the (1mm thick!) glass is secure, and clean all the dust out. Just make sure the Z screw is engaged with the stirrup when replacing the movement, otherwise the zero can't be adjusted.

I've peered inside and i believe this is possible...Discuss!

Dave
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