[vcf-midatlantic] Saturday

Dave McGuire mcguire at neurotica.com
Wed Mar 9 11:42:48 EST 2016

On 03/09/2016 10:59 AM, Evan Koblentz via vcf-midatlantic wrote:
> Thinking out loud some more: gold traces are on the BACK of circuit
> boards. On the front all you usually see is a brighter/lighter shade of
> green. Am I nuts?

  Gold traces (if any) can be on either side of the board, or (just as
often) on both sides.  Card-edge connectors are the "iconic" place to
find gold plating...if you throw in some of that it'll be recognizable.

  The green comes from two places...The top layer of glass/epoxy and the
solder mask.  They are sometimes different shades of green; that's what
you're noticing there.  There are actually many different colors of
both, though green has historically been the most common.

  Anybody ever use OSH Park for PCB proto runs?  They're purple.  Very
regal. ;)


Dave McGuire, AK4HZ
New Kensington, PA

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