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Mexico leaded solder as bad as PbF?

N

N_Cook

Jan 1, 1970
0
Fender Hot Rod PR 246 probably 2005 from IC datecodes , "Made in Mexico" .
Something in excess of 20 bad solder joints. Indentation and 'cool'
soldering iron tests and lack of crystalline haze with admixture of leaded
solder indicates it is leaded solder.
But appearance is more conical than spherical. Known bad supply of
conventional solder there and then , contaminated , eg greasy, component
leads ?
 
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