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rescla , 11 months ago The bottom right one looks like a mercury arc valve: en.m.wikipedia.org/wiki/Mercury-arc_valve It reminded me of an old Photonicinduction video youtu.be/QY6V2syGnZA
The bottom right one looks like a mercury arc valve: en.m.wikipedia.org/wiki/Mercury-arc_valve It reminded me of an old Photonicinduction video youtu.be/QY6V2syGnZA