On Sep 2, 2018, at 2:49 PM, Andrew Luke Nesbit via
cctalk <cctalk at classiccmp.org> wrote:
 Dear Paul,
 On 02/09/2018 08:12, Paul Anderson via cctalk wrote:
  Two Unisys PCK105-SKB look unused, but one is
yellowed.
 Sorry, I forgot to describe them as keyboards. 
 I realized the beauty of mechanical keyboards earlier this year, and I
 am gradually changing my workflow to returning to using them.  This
 includes acquiring a small collection for comparison purposes,
 availability, and, more interestingly, RE work that involves the PS/2
 protocol.
 I've searched the web for the PCK105-SKB but I have been unable to find
 a proper description or even images.
 Normally I use ISO UK or Apple Mac UK layout, but a US layout is good too.
 Please could you point me to details about these keyboards?  Thanks!! 
For non-classic stuff (e.g. modern computers for work) I use DAS Keyboards.
They have several models including a Mac version. They use cherry mechanical
key switches.  I have 3 and I?m very pleased with how they feel.
TTFN - Guy