9 Oct
2005
9 Oct
'05
11:58 a.m.
Scott Stevens wrote:
Price is probably down to $50 when you buy 1000, but
this isn't a board
that we could find 1000 customers for at $50 apiece.
It could be a realistic candidate for a two layer board that does the
worst/most repetetive of the busses and power with the holes sized for
wire-wrap sockets. But that's a huge engineering project just to
recreate something, and there'd still be huge amounts of wire wrapping
to perform.
But what is on the MPX-16 that needs such hi-density? 286? All 640k of ram?
I once in my naive youth bought a 'bare kit'
unpopulated PC-XT clone
motherboard (this was from a Canadian company, btw.) It was only a two
layer design, and I never did get it populated. It probably wouldn't
have been stable, with the deficient power and grounding inherent in a
high chip count two layer layout.
(okay, somebodys turn to say it can all be done in an ASIC)
sure why not ... Umm a 4.77 GHZ XT -- runs and DUCKS ....
Wait on second thought you might get one at that speed since you
don't need
more than 16 bits. Now a PDP-8 would be hard to do at high speed since
they have Read - Write memory cycle.
.
Still doing PCB's I think is a better way than wire wrap for more than a
few IC's.