On 7 Nov 2011 at 20:50, Tony Duell wrote:
  Howeever, since the PC/AT keybaord itnerface is
well-docuemtned,
 wouldn't it be better to design a proper (i.e. without bugs) PC/AT
 keyboard to USB converter? 
The guy offers the artwork for a replacement PCB that mounts in the
Model M; he's done the programming--the job is essentially a solder-
ti-togethere-and-program-the-AVR no-brainer.
I can buy AT-to-PS/2 converters; some might even work correctly.  Why
would I want to build one?
--Chuck