[Coco] Cart PCB thickness?

[Matthew Stock]

Bill,

I don't know what features you're looking for in particular, but the
interface board I'm working on is my attempt to build such a prototype
board.  Rather than leave a blank board however, I've put in a few handy
items for most projects - bus transceivers, a 32K EEPROM, and a small CPLD
to replace a lot of the standard glue logic.  It has a breakout header with
the address and data pins to connect to an Arduino, but you could obviously
use those to connect to anything.  Right now the whole board measures about
2.25"x3.25", and has some mount points for either a simple "cover" or
installation into a case.

If that seems like it could be a good start for you, let me know.  My plan
at the moment is to offer fully populated/programmed boards for sale, but
also to provide the code and designs for free.  I don't really know how
much demand there is for such a unit, but it's a fun project regardless.

You can see a couple of demos of the prototype board at
http://www.youtube.com/user/Greyhound716 along with a few other projects
I've been working on.  I hope to have a new (final?) board incorporating
all of the design improvements in a couple of weeks.
  -Matt




On Thu, Apr 25, 2013 at 7:46 AM, Bill Gunshannon <billg999 at cs.uofs.edu>wrote:

>
> > Hi Guys,
> >
> > I'm sure this has been discussed here before, but I can't for the life of
> > me
> > find it in any of my archived messages (probably 2007 which I
> accidentally
> > deleted a few years ago). :(
> >
> > Anyway, was wondering what the 'standard' Coco cartridge PCB thickness
> is?
> > Is it 0.062" (1.57mm)?
> >
> > Was looking for some cartridge connectors and was wondering whether
> either
> > of these would do the job? (they don't need to fit a Coco mobo)
> >
> > <http://www.digikey.com/product-detail/en/EBC20DRXH/S3315-ND/927267>
> > <http://www.digikey.com/product-detail/en/EBC20DREH/EBC20DREH-ND/973864>
>
> Should work.  The original was an ETC20DREH (I have one sitting on the
> desk next to me right now) which was discontinued.
>
> Anybody know where I can get protocards with the matching fingers,
> preferably small enough to fit in a COCO Cartridge (although cutting
> them down is always an option!) Sadly neither the Tandy Part or the
> DEICO part seem to be available from anywhere.
>
> bill
>
> --
> Bill Gunshannon          |  de-moc-ra-cy (di mok' ra see) n.  Three wolves
> billg999 at cs.scranton.edu |  and a sheep voting on what's for dinner.
> University of Scranton   |
> Scranton, Pennsylvania   |         #include <std.disclaimer.h>
>
>
>
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