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Re: 16-bit 6502 replacement bulk order : PCB schematics
- Subject: Re: 16-bit 6502 replacement bulk order : PCB schematics
- From: Rubywand <rubywand@swbell.net>
- Date: Sat, 08 May 2004 22:13:21 GMT
- Newsgroups: comp.sys.apple2, comp.sys.cbm, comp.sys.oric
- Organization: SBC http://yahoo.sbc.com
- References: <409b4478$0$31943$626a14ce@news.free.fr>
- Xref: controlnews3.google.com comp.sys.apple2:419 comp.sys.cbm:786 comp.sys.oric:115
Euphoric writes ...
>
> 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)
>
> Daryl
....
Is more info on the board available? Like, is there anything about
tests in an Apple II or C-64/128?
Rubywand