make Your own EEG electrodes (and save a buck or two):
1/ Go to the shop and get lead-free solder. It is a mixture of tin and silver.
2/ Make a drop and let it fall on a flat surface.
3/ solder a wire to the new formed disc.
4/put in saltwater with white vinegar with a sacrificial cathode made from your mom's sterling silverware.
5/ The positive is the little disc you just made. (yep You need a battery)
6/ Let it run until it's black.
now you have a professional ag/agcl electrode.
7/ Use hot glue to fashion the disc holder.
8/ Check cost with prices of official manufacturers
9/ Sing , shout, enjoy and be very happy !
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