Thanks guys, I appreciate your time & patients to explain this!
But, it begs yet another question: I see far more discussion regarding plates as opposed to tube configurations. Are plate cells by and large better than tube cells? Both my cells I built are tube type, using 1.00 & .75" 316 stainless. My big cell has an array of 7 tubes @ 6" long, while my smaller cell (just finished it today) uses 3 tubes @ 5" long.

I also have several plates I could play with, which are 1.5" x 6", aprox. .05" thick. I haven't done anything with them yet.