If you can use low quality contacts, just use tin/lead or lead free solder (HASL)
If you want reliability of your contact, flash gold is the only reliable solution
that I know of for separable contacts.
Just my $0.02,
Jean-Paul
N1JPL
> On Nov 4, 2016, at 9:25 AM, yahoo@... [Homebrew_PCBs] <Homebrew_PCBs@yahoogroups.com> wrote:
>
> Hi Again,
> So it sounds like Gold is expensive, toxic, etc. Are there other approaches people have used if they want to make contacts (card edge fingers for example) on their boards?
> Best,
> Ozz
>
>