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Re: 16-bit 6502 replacement bulk order : PCB schematics



Hey Mark!  It always strikes me to see someone from RGVAC on here!  :)

Thomas

"Mark C. Spaeth" <mspaeth@plancherel.mit.edu> wrote in message
news:409ff5a1$0$579$b45e6eb0@senator-bedfellow.mit.edu...
> In comp.sys.apple2 Euphoric <nospam@nospam.net> wrote:
> : Browsing through the discussion at 6502.org 's forum can be tedious, and
> : Daryl doesn't read these newsgroups, so here is his original post on
> : 6502.org:
> :
> : "After several months and many more revisions, I've completed laying out
the
> : traces for the converter. I still need to clean it up - straighten some
> : traces, add 45 deg bends on the corners, check spacing around all pads
and
> : vias, etc.
> :
> : I added to the schematic. There are two jumpers. J2 allows you to select
the
> : gate for the 74x245 and J3 selects 2 inverters or 4 inverters as inputs
to
> : the AND gate.
> :
> : Check out the schematic, layout draft, and expressPCB files on my web
site.
> :
> : http://65c02.tripod.com/conv.html
> :
> : Estimated cost for 10 boards would be $200. ($20 each)
>
> Doesn't this seem a little ridiculous when 6502s can still be had
> for under $10?
>
> I think everyone would be happier trying to twist someone's arm (ie
> someplace like rocelec.com) into finding, dicing, and packaging some
> old 6502 wafers (assuming WDC isn't interested), and having the real
thing.
>
> In any case, I probably have well over 100 6502s in my house on arcade
> game PCBs, and that's a much bigger market than retro PCs...
>
> -- 
> Mark Spaeth                       mspaeth@mtl.mit.edu
> 50 Vassar St., #38.265            mspaeth@mit.edu
> Cambridge, MA 02139
> (617) 452-2354                    http://rgvac.978.org/~mspaeth
>