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.
Message
Re: brass tube vias
2017-10-31 by Paul Alciatore
Attachments
- No local attachments were found for this message.