| http://www.w3.org/ns/prov#value | - Clock signal comes from a 3.58 MHz crystal divided by two (as in ELF with the video extension) and power comes from 7805 regulator, which does have a tough time feeding power to all the chips and especially the displays, but manages still (gets a bit hot - I used a 9V mains transformer, which does feed almost 10V in).
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