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Old 2nd Apr 2021, 3:51 pm   #2
G6ONEDave
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Join Date: Dec 2019
Location: Owston Ferry, North Lincolnshire, UK.
Posts: 732
Default Re: Yaesu FRG7700 shields cleanup

There used to be a tinning liquid available for tinning pcbs, so that the all the bare copper tracks became tinned. I wonder if it would work on your screening covers, although they will need a good cleaning first before being dipped. It looks like something has attacked the tinned plate surface, maybe moisture.
Dave
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