The Ware for December 2021 was a portion of the main PCB from an Experion Automated Electrophoresis Station. According to Nava (thanks again for the ware!):
So all the high voltage stuff is to drive the electrophoresis, up to 2200V. The idea is rather than running gels this instrument does everything on microfludic chips, these have 16 independent channels, hence the 16 drive voltages.
I’ll give the prize this month to FETguy. I, too, initially thought this was some sort of a piezo driver array, but I did not have the insight to realize that the voltage doublers were incapable of playing that role and ended up chasing a dead end. Thanks for sharing your analysis. Congrats and email me for your prize!