10 Jul
2020
10 Jul
'20
2:28 p.m.
On 7/10/20 2:14 PM, Al Kossow via cctalk wrote:
There are a couple of serious researchers out there
who do useful work, here is what exists for the SD switch
https://deskthority.net/wiki/Micro_Switch_SD_Series
the schematic of the 1660 microswitch keyboard can be found on page 235 of the maint
manual
http://bitsavers.org/pdf/diablo/printer/400083-01_1660_Maintenance_Jul78.pdf
it uses x/y matrix style hall modules
the drawing you pointed to uses pulsed output switches
neither type will work in his application