[whyperion]

Maybe this should go in a separate thread, but I have mused before that half the problems with electronic stuff is getting the mains supply to the units needs. Most items carry effectively a mains cable ( computer printer and laptops and some similar items dont as such), into a section of the item - adding weight, of assorted active and passive devices to step up the voltage, take it down, change the Peak RMS or whatever, make it AC, make it DC, split it to different voltages for varying applications. I suppose it would be unsafe to have always a power supply separated with plug modes to the next stage, but something like that, accessible, modular, repairable, would make life easier if a straightforward mains to application is not needed.