5563Re: [midatlanticretro] Re: New pcb design for S-100 prototype board available
- Jun 3, 2007Herb,
The cost is based on getting a batch order of 30 boards. I'm not
keeping an inventory here. I'm just designing this and looking for
people to join in. That way we can get it at a reasonable cost. This
design includes all the accouterments.
The vertical rows do seem to have a bigger limitation. Maybe it's better
to go with the grid pattern. I was thinking about adding the decode
logic too. But I haven't decide on whether to use discrete TTL logic or
a common PLD to save space.
Since this my hobby, I'm doing this mostly for fun and whatever bonus
there is at the end is alright by me :)
I'll be glad to help out on any design you might have. Send me email
offline and we can talk some more.
[ My Corner of Cyberspace http://ragooman.home.comcast.net/ ]
Herb Johnson wrote:
> It's a nice, straightforward protoboard design you've photographed.
> Can you really offer these at $15, with *plated edge connectors*, all
> drilled out - and still cover your costs? Maybe you can make some
> boards (of my design) for ME on those terms! We can talk privately
> about stuff like that (after the upcoming VCF show).
> The only downside to your vertical runs of chips is that it limits
> chip count. Some protos are horizontal runs, some are perforated at .1
> centers on the whole board. I'd prefer the whole-board perforated
> design, and run my own grounds and power, for maximum flexibility. But
> for a simple design using a dozen to 20 small chips, or a few large
> chips, your board will do the job.
> So good luck on your project! Keep me posted.
> Herb Johnson
> Dr. S-100
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