I have AT2XTKBD bare boards available for $5 each that were designed at vintage-computer.com forums with the help of our very own Chuck Guzis.
https://retrobrewcomputers.org/doku.php?id=boards:other:at2xtkbd:start Todd * Fred Cisin <[email protected]> [161218 03:49]: > >> Alright, thanks for the info. I think I'll start off with something in > >> the "cheap crap" category and see if i can find something better down the > >> line. Now that i know what to look for it probably won't take long to get > >> one that is of good quality. > On Sun, 18 Dec 2016, Eric Smith wrote: > > After that AT (5170) hit the market, most of the clone keyboards that were > > introduced either had a switch to select between XT and AT interface, or > > did auto-switching. As XTs faded from common use, the clone keyboards > > dropped that feature. > > Which brings up: > How to tell whether a given keyboard is suitable for XT > It will have a 5 pin DIN (NOT mini-DIN) connector. > It will almost always be 83 key, but there were exceptions. > It will almost never have lights, but there were exceptions. > If it has an XT/AT switch, then it is OK! > > If you find an 83 key keyboard, with 5 pin DIN and no lights nor switches, > then it could be XT, or it could be AT, with no external indication. > Which leaves part number, or opening it to check circuitry. > Should be possible to power it, and monitor the signals that it puts out? > > > You could try to make a microprocessor based adapter, . . . > 30 years ago, people were trying to make adapters to use XT keyboards on > AT. Some of that information is still floating around. > > > Once "everybody" had upgraded to AT, most XT keyboards were dumpstered. > 35 years ago, you could buy a keyboard to build a PC for $300. > So, maybe the eBay prices aren't so ridiculous?
