Thread: AVO model 8
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Old 1st May 2019, 6:57 am   #9
sparkymike
Octode
 
Join Date: Dec 2006
Location: Colchester, Essex, UK.
Posts: 1,063
Default Re: AVO model 8

Thanks Dave, will check leaf switches later. At least you can see them !!
I cleaned the contacts on the overload switch and found that the movable contacts were easily removed, but I made the mistake of removing one of the screws on the fixed contacts, to make cleaning easier and then took half an hour or more replacing the nut !! I had thought that the screws were tapped into the Bakelite. Not so.!! I then cleaned them in situ..The nuts sit in a nut shaped hole in the support. In future I would probably hold the nuts in place with a dab of grease.
The needle floats quite a bit when case is moved.ie loss of damping. Does this indicate a reduction of magnetism in movement.?
Mike.
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