I did measure a number of cap and used a wall wart w/ 19VAC. I attached the red lead to the center and the black to the outer portion of the plug. Then attached the leads to the cap and measured the voltage from the foil to each lead. The red lead had consistently lower readings. If I swapped sides with the clips, the side that previously had the higher voltage (black lead) now had the lower voltage w/ the red lead. Anyone else notice this?
Am I missing something?
Thanks.