So when I lop off the 15A 115V plug - I suppose I'll see three wires. Black, n' white, n' green. When I attach the NEMA 6-20P plug, he said redundantly, does the black need to go to one particular blade, or can I choose thanks to the magic of Alternating Current.
I ask 'cuz thanks to the magic of the internet, I learned a few years ago that there was a right way to wire zip cord in a lamp with a polarized plug...
Gracias Amigos!