[Coco] 512K upgrade for CoCo 3 on eBay

[Bruce W. Calkins]

There was one brand of upgrade board that did not shorten one pin key 
that would reach though the connector and short out a line to the CPU, 
instantly letting the magic smoke out.
That said, this since this one was used is probably not one of them.
As soon as I can find it in the midden heap, I plan on shortening that 
pin and will offer it for sale.
It took a lot of searching to find out what killed my 68B09E, but the 
"good" part is that I socketed the replacement 63B09E.
Bruce W.



On 02/06/2018 11:07 AM, Stephen Pereira wrote:
 > Hi folks,
 >
 > I saw this listing on eBay this morning:
 >
 > 
https://www.ebay.com/itm/512K-RAM-upgrade-for-Tandy-Color-Computer-3-/162888999277?&_trksid=p2056016.m2516.l5255 
<https://www.ebay.com/itm/512K-RAM-upgrade-for-Tandy-Color-Computer-3-/162888999277?&_trksid=p2056016.m2516.l5255>
 >
 > Does anyone have any experience with this eBay Seller?  How about the 
memory upgrade?  Seems a bit expensive - can anyone comment on what’s a 
good price for something like this?
 >
 > Thanks very much, in advance, for your thoughts and comments.
 >
 > smp
 > - - -
 > Stephen Pereira
 > Bedford, NH  03110
 > KB1SXE
 >
 >
 >