Ok hee i an off the wall idea, but sometimes such things work.  I read a long
time ago.  that someone wanted to roll theirown capacitors. The solution was
to use tin foil and wax paper. Perhaps this may work in your  situation in
which each pad is sandwiched with tin foil and wax paper and then measuring the
capacitance or either time in an RC configuration



Just a thought
Eddie Turner, kc4awz




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