[vcf-midatlantic] Upcoming: Apple II Prototype Card

Dan Roganti ragooman at gmail.com
Sat Jun 25 17:59:05 EDT 2016

On Fri, Jun 24, 2016 at 9:42 PM, Systems Glitch via vcf-midatlantic <
vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:

> Apparently Ian is building an Apple II card for VCF, and doesn't like most
> of the current prototype card offerings -- either the layout
> is...deficient, or they're not regularly available. I laid out a simple
> pad-per-hole board:
> http://i.imgur.com/G5QOATi.png
> I have a small prototype quantity on order, but I'll probably be ordering
> 50 or 100 in the near future, if anyone is interested.
> Thanks,
> Jonathan

​​very nice
One item I would suggest,
after looking at the routing of power bus,
but without looking at the bottom side​ of your pcb yet,
so I don't know if you had already done so,
would be to make the ground bus encircle the entire board as well,
but then have both ends of the ground bus connected to the ground pin on
the card edge
It can hard to create copper fill for the ground layer on a prototype
board, when the parts layout is unknown
But that one little step can still help avoid ground loops
This problem can even happen on homebrew projects

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