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Old 23rd Aug 2019, 10:13 pm   #22
Richard_FM's Avatar
Join Date: Sep 2017
Location: Stockport, Cheshire, UK.
Posts: 976
Default Re: Substance applied to Radio circuit board screws ?

A lot of older portable radio PCBs from the Far East had a layer of wax dripped over them to stop the components to stop them moving due to being loosely soldered.
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