Nice overview of the available options among Option ROMs. I wish I'd seen this when I first got my Tandy 200.
Brian, it is worth mentioning that your Teeproms also have the benefit of being under a copyleft license (Creative Commons Sharealike). —b9 On Wed, Aug 17, 2022 at 11:18 AM Brian K. White <[email protected]> wrote: > On 8/13/22 19:43, Spencer wrote: > > Hello. > > > > I've been looking for this ROM for my T200 Portoable, but I cannot > > find it. Even ebay doesn't have it. Does anyone know where I can get > > 1 or 2 of these chips? > > > > Thanks > > The chip is a custom non-standard pinout mask rom just made for Tandy. > Electrically it is the same as any other mask rom or 27256-minus-Vpp, > except some of the pins are re-arranged so the pinout is different. You > can't buy a chip like that (never could), you can only buy something > else which has the same signal levels and read cycle, and a pinout > adapter, and a means of making a physical connection to that socket when > you can't just use a dip package chip normally the way the custom-pinout > chip could. > > If you really want an actual original part, you'll have to set up a > search on ebay, check it every day, and wait and hope a model 200 shows > up for sale some day with one in it. It may be years because 200's > aren't as common, then not everyone even shows a picture of the rom > socket, and then most of those are empty, and of the non-empty, the most > common rom was Multiplan not multi-solutions. Don't hold your breath ;) > > If you just want a copy of the rom that you can install and run on a > real 200 and otherwise don't care what physical form it comes in, then > the easiest and most useful thing is to buy a REX# and install the rom > image from the zip file conveniently included right on the REX# docs page. > http://bitchin100.com/wiki/index.php?title=Ordering_Information > http://bitchin100.com/wiki/index.php?title=REXsharp > > http://bitchin100.com/wiki/index.php?title=REXsharp#Option_ROM_Images_for_Download > > Another option, less flexible and not even cheaper, but simpler and more > like a normal rom, is you could build a Teeprom > http://tandy.wiki/Teeprom and use the same rom image from above to load > onto it. > > If you were just looking for a compatible blank chip to install any rom > onto, the answer is the same. > > If you just want to use the software and don't even really care about > using a real 200, then I believe both VirtualT and CloudT can run it. > > And just to keep everything together, David Anderson provided the manual > in another post: https://archive.org/details/MultiSolutionsRomTandy200 > > -- > bkw >
