On Wed, Mar 9, 2016 at 11:32 AM, Evan Koblentz via vcf-midatlantic < vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
http://www.ceilume.com/accessories/GridTape/Copper/
For the circuit traces
Yeah but it's $46/roll. Too steep. Arts/crafts store has tape in all kinds of colors for $3.99/roll. We can find something close.
Nobody's answered my question -- I don't have any PCBs handy, but looking at Google Image Search shows only lighter shades of green atop on the dark green backgrounds -- what am I missing?
Circuit boards can be single sided or double sided. Single sided have the traces on the back (bottom) only. Double has traces on both. (There are also multiple layers but they aren't visible so it is moot for this conversation.) In either case, there is usually some type of solder mask on the board, a coating that keep solder off the traces except where the components need to be soldered. The mask can be many colors but is quite often green. Bare copper isn't usually visible since it is either masked or soldered. Is that what you are asking?