[vcf-midatlantic] Saturday

Chris Fala chrisjpf33 at gmail.com
Wed Mar 9 11:46:19 EST 2016


On Wed, Mar 9, 2016 at 11:42 AM, Dave McGuire via vcf-midatlantic <
vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:

> 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
>
> --
> Dave McGuire, AK4HZ
> New Kensington, PA
>


You go Dave! I got a little lazy with my description but you filled in the
details. :-)



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