[Coco] Two I/O cartridges for sale,

[Gene Heskett]

On Saturday 27 September 2014 21:42:39 tim lindner did opine
And Gene did reply:
> Two I/O cartridges for sale, from Marty Goodman's collection.
> 
> The two full height cartridges are packaged in a metal case.
> 
> They each contain two 6821 (or equivalent) PIAs.
> 
> The PIAs are addressed from $FF70 to $FF77. They are hand made, with
> point to point wiring on the bottom side of the board.
> 
> On one end of the board is the expected CoCo cartridge connector. The
> other end is 40 pin ribbon cable connector.
> 
> Cart A case:
> http://www.macmess.org/images/32-bit-IO/170_0791.JPG
> 
> Cart A board front & back:
> http://www.macmess.org/images/32-bit-IO/170_0785.JPG
> http://www.macmess.org/images/32-bit-IO/170_0787.JPG
> 
> Cart B case:
> http://www.macmess.org/images/32-bit-IO/170_0789.JPG
> 
> Cart B board front & back:
> http://www.macmess.org/images/32-bit-IO/170_0781.JPG
> http://www.macmess.org/images/32-bit-IO/170_0783.JPG
> 
> I've tested each of the 4 ports on each of the 2 cards. I set each
> port to output mode hooked up a single LED and made it blink from
> BASIC.
> 
> I also pulled out the EDTASM cart and the Leventhal book. I had some
> fun working thru some of the examples in the PIA chapter. I was able
> to read a push button.
> 
> Also: These carts were for the personal use of Marty Goodman, no
> warranty is either expressed or implied.

Tim, these are being auctioned to the highest bidder or ?

The B version looks as if its address could be adjusted easier, so I might 
be interested in it.

Cheers, Gene Heskett
-- 
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