EI7GL....A diary of amateur radio activity
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Showing posts with label
Printed Circuit Boards
.
Show all posts
Showing posts with label
Printed Circuit Boards
.
Show all posts
Wednesday, January 28, 2026
Why are Printed Circuit Boards green in colour?
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Why are printed circuit boards green??? It's not exactly the type of question that would keep you awake at night but once you see it, yo...
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