Some of the Lo-tech boards and other replicas end up on eBay and are sometimes less expensive (at least in the US).
Another small time maker, Monotech [0], has also produced boards. I sort of consider them semi-expensive. Especially considering that they don't seem to be original designs. They do seem to have some optimizations, bug fixes, etc. They also went through the effort of integrating several designs into an MicroATX form factor, 8088 XT-compatible board including IDE, SVGA [0]. Other original designs are here [2][3][4][5][6][7][8]. [0] https://monotech.fwscart.com/category/cards [1] https://monotech.fwscart.com/NuXT_v20_MicroATX_Turbo_XT_10MHz_832K_XTIDE_MultiIO_SVGA/p6083514_19777986.aspx [2] http://www.malinov.com/Home/sergeys-projects/xi-8088 [3] http://www.malinov.com/Home/sergeys-projects/isa-fdc-and-uart [4] http://www.malinov.com/Home/sergeys-projects/xt-cf-lite [5] http://www.malinov.com/Home/sergeys-projects/isa-supervga [6] http://www.malinov.com/Home/sergeys-projects/sergey-s-xt [7] https://github.com/skiselev/micro_8088 [8] https://github.com/skiselev/isa8_backplane On Fri, Oct 2, 2020 at 7:40 PM Michael Brutman <mbbrut...@brutman.com> wrote: > > The retrocomputing crowd has a lot of these projects now, and they generally > work. Most are based on open source designs so the quality will vary from > vendor to vendor. > > The 8 bit IDE cards for example are based on a project called XT-IDE that I > was part of back in 2008/2009. (See the genesis of the project at > http://www.vcfed.org/forum/showthread.php?12359-8-Bit-IDE-Controller . The > original version of the card had the traces optimized on my work laptop while > it was idling.) > > If I were buying an XT-IDE I would be getting it from > https://www.glitchwrks.com/xt-ide. I haven't purchased any of the recent > variants; all mine are gen 1 from the first production run. And I've not > tried out memory boards but they are generally known to work; they are not > particularly complicated. > > > Mike > > > On Thu, Oct 1, 2020 at 4:34 AM Eric Auer <e.a...@jpberlin.de> wrote: >> >> >> Hi! Mentioned in a video mentioned by Rugxulo on BTTR, >> I noticed that there is a shop where you can get some >> circuit boards to do-it-yourself 8-bit ISA extension >> cards for your ancient computers for features such as >> more RAM, IDE or Compact Flash interfaces or even USB >> interfaces which are bootable. Interesting technical >> detail: They use EEPROMS which you can program without >> using a programmer, just with magic write sequences. >> >> Has anybody tried any of those products? Are they okay >> for the task at hand? Note that the shop usually has >> only the PCB, not the pre-built devices, so you have >> to get the components elsewhere and solder yourself in >> most cases. They also have a few ready to use products. >> >> https://www.lo-tech.co.uk/product-category/retro-ibm-pc/ >> >> Cheers, Eric >> >> >> >> _______________________________________________ >> Freedos-user mailing list >> Freedos-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/freedos-user > > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
