[Coco] 2764 EPROM

[Bruce W. Calkins]

> On Saturday 08 September 2007, Roger Taylor wrote:

>>
>>I think some of the paks use some kind of open chip design with a
>>solid bubble of plastic over the real estate ?





From: "Gene Heskett" <gene.heskett at verizon.net>
>
> Its not plastic, but quartz Roger.  That's the window that lets in the UV
> light to erase the chip and make it ready for re-programming.





What Rodger is referring to is the later packs that had a small blob of 
black plastic in the middle of the small board.  Not a whole chip in sight.



Bruce W.