Yep been a Mr C fan for a while.? He designed a neat little rig that checks for foil side of a cap.? I think my second build ever.? Works great.? I even took apart a few spare modern caps to see if the the Mr C?SIFT works and it does.
The old 'Amp' test is one that works as well.? Plug the cap into a guitar amp crank up the volume and you can hear the foil side.
