How to Make ECG Leads

• Strip 2-3” of insulation– Use an Exacto knife to carefully cut the gray

insulation away– Do not cut the metal braided shield

underneath

How to Make ECG Leads

• Push the shield together with both fingers• This will cause the shield to loosen around

the wire

How to Make ECG Leads

• Open a hole in the shield to pull the wire through

• Use the knife to pry a hole in the shield

How to Make ECG Leads

• Pull wire out of shield through the hole you made

• The shield is now hollow

How to Make ECG Leads

• Twist shield wires together• Twist black (ground) wire together• Slip black plastic banana plug cover over

wires• Solder metal banana plug to wire bundle

How to Make ECG Leads

• Slip orange plastic banana plug cover over arm lead wire (white).

• Solder metal banana plug to wire.• Repeat for other arm lead.

How to Make ECG Leads

• Strip other end of wire • Cut shield back from inner wire• Be sure to not solder alligator clip to shield

– This will make your ECG not work• Solder alligator clips to each wire• Tip: For a neater looking job, use heat

shrink tubing around the base of the alligator clip (put on wire before soldering).