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Re: brass tube vias

2017-10-31 by Paul Alciatore

I have seen boards made with brass tube eyelets that were not plated for 
easy solderability. These eyelets worked about 99% of the time or, in 
other words, 99 out of 100 of these eyelets gave no trouble. But that 
last one, the one in a hundred had a little corrosion on it and the 
solder did not take. But it was covered with the solder so you could NOT 
see that it was a bad connection. After some time (years?) the 
mechanical connection that initially worked, accumulated some more 
corrosion and began to give trouble. It was a real PITA to try to 
troubleshoot a board that had all good components and absolutely no 
visible indication of the real problem. I spent many, many hours working 
on those boards.


I do NOT like boards made with brass eyelets or terminals unless those 
brass components are heavily plated with SOLDER. Not a thin layer of tin 
or some other "compatible" metal, but actual SOLDER.

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