16 Aug
2019
16 Aug
'19
11:43 a.m.
I'm sure DEC wouldn't have bothered with hard gold plating if their
connectors were metallurgically incompatible :P The few busted DEC
connectors I've replaced did indeed have selective gold plating on the
contact surfaces. Most quality edge connector slots are similarly
constructed.
Thanks,
Jonathan
On Fri, Aug 16, 2019 at 2:27 PM ben via cctalk <cctalk at classiccmp.org>
wrote:
On 8/16/2019 12:13 PM, systems_glitch via cctalk
wrote:
Dwight,
I spot check boards. I lack sufficiently sensitive instruments to measure
actual thickness (even on a surface plate, it's the same for ENIG as hard
gold with an 0.0001" indicator) but ENIG won't stand up to a few swipes
with an ink eraser, whereas hard gold will stand up to it no problem. The
main issue I've seen, in buying other people's products and projects, is
board houses passing off ENIG as hard gold (and charging for it!) or
claiming they're using "extra heavy ENIG" -- which of course isn't a
thing,
because ENIG is an ion swap!
Thanks,
Jonathan
Is gold plating the best thing? I thought that gold plating only works
best when matching other gold connections.
Ben.