Nov 10, 2009 #1 I imadelsayed Newbie level 5 Joined Nov 10, 2009 Messages 8 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location lebanon Activity points 1,317 Ecg tester iam doing an ecg tester, ineed a schematic for 12 lead ecg tester plz