On Wed, Mar 9, 2016 at 11:42 AM, Dave McGuire via vcf-midatlantic < vcf-midatlantic@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. :-)