The bitchin100 order page for Stephen Adolf ( https://bitchin100.com/wiki/index.php?title=Ordering_Information) still lists RAM cards for both the M100 and the T102, as well as the Rex#. I ordered a couple of upgraded slabtops from him earlier this year which included these upgrades, so I know they were still available fairly recently.
The REX# Doesn't expand the RAM on the 100/102, but it does let you store your RAM in the REX# and swap for another stored bank, essentially giving you multiple banks of up to 32k that you can swap between. Of course, you'll want the RAM cards to upgrade your base RAM to that 32k to begin with. Adam On Wed, Nov 20, 2024 at 6:45 AM Kenneth Pettit <[email protected]> wrote: > Hi Chris, > > The REX doesn't actually extend the RAM beyond 32K. Bert was meaning that > you can backup your 32K RAM to REX and restore a different one, giving you > multiple 32K RAM working spaces with different content. > > There were a couple of RAM expansions available in the past, such as EXT4 > (from the 80's / 90's) or ReMem (Steve Adolph circa 2015 or so), but to my > knowledge, none of those are in production > > Ken > > > On 11/20/24 5:19 AM, Chris Kmiec wrote: > > > Hmm, I don’t see that feature in the specs for REX#. It has 1mb of Flash > memory for storing ROM images and can backup and restore the ram, but I > don’t see and RAM on REX that would allow me to max out Tandy’s onboard RAM. > > Chris > > On Tue, Nov 19, 2024 at 7:44 PM Bert Put <[email protected]> wrote: > >> Hi Chris, >> >> Not the screen so much, but your REX will already give you oodles of RAM >> in banks of 32K. So you can swap out and in, as many RAM banks as your >> REX has space for. >> >> I just discovered that recently while playing with my (original) REX, >> M-100 and T-102. >> >> Cheers, Bert >> >> >> On 11/19/24 17:59, Chris Kmiec wrote: >> > I have to admit, I have not been following the latest developments for >> > the 100/102. I have the backpack, REX# and REXCPM, but they have been >> > sitting lonely as for the past year or so my hobby time has been taken >> > over by the HP 71b. >> > >> > Anyway, I want to start playing with the 100-series again, but have a >> > question - are there any modern upgrades for the LCD screen and >> increase >> > in RAM beyond the 32Kb? >> > >
