When I got my DSETK0023CE03 keyboard with my X68000 I noticed that the BREAK and COPY keys were much heavier than the other switches (which is also true of some other Alps boards). While looking up information on the PCB I found
this site which shows the entire keyboard disassembled which reveals some sort of white switch for those two keys. Does anyone have any idea of the exact model number of these switches or where else they were used? I can't find any information on these heavy linear versions.
(switches are clearly shown in the top left)
![Image](https://proxima.coomaru.com/pc/pc004/pic/kb103.jpg)