Plasma assisted fuel reforming for on-board hydrogen
rich gas production
https://minesparis-psl.hal.science/h...26494/document
With lots of pretty pictures showing just how easy it is to turn one on a lathe.
Graphite rods to use as an electrode seem easily available.
And lathes (etc with operators) are likely to be within 10km of most everyone.
There's one 15 feet from me as I type, right next to the milling machine in the garage.
"...The generation of a low current - high voltage arc discharge is obtained using a power supply based on a
resonant converter technology specially developed for this application. A 15,000 V maximum voltage can be
achieved while arc current is limited to 660 mA..."