atrax27407 Posted August 21, 2018 Share Posted August 21, 2018 While going through my "junk" boxes, I ran across this item. It is a WHT AT Interface ROM Upgrade Board circa 1993. I have no idea whether it is functional or not but it would probably be an interesting restoration project for someone. If you want it, $15 via PayPal. Send me a PM - first come, first served. Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted August 21, 2018 Author Share Posted August 21, 2018 It has been spoken for. Quote Link to comment Share on other sites More sharing options...
Stuart Posted August 22, 2018 Share Posted August 22, 2018 So what does it do and how is it fitted? Is it soldered on top of the processor? You'd need to cut away the metal shielding? Quote Link to comment Share on other sites More sharing options...
Stuart Posted August 22, 2018 Share Posted August 22, 2018 To answer my own question … http://www.whtech.com/ti/atkeyb.html Quote Link to comment Share on other sites More sharing options...
+9640News Posted August 22, 2018 Share Posted August 22, 2018 I would be interested in this device for the TI-99/4A should someone ever decide to produce them again. Beery Quote Link to comment Share on other sites More sharing options...
peterfleeman Posted August 23, 2018 Share Posted August 23, 2018 I was able to find a couple other mentions of it online: https://cdn.preterhuman.net/texts/computing/msx/ti%20hardware%20compendium.txt http://www.ti99ers.org/timeline/microreviews1996_jan.html 1 Quote Link to comment Share on other sites More sharing options...
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