Hi Dave, Thanks for your interesting claims. I would be even more interested to = receive either a circuit of some digital filesof your output for a large quake and= a comparable=20 professional broad band seismometer for the same event.=20 Regards,=20 Chriss Chapman=20Hi Dave,Thanks for your = interesting claims. I would be even more interested to receiveeither = a circuit of some digital filesof your output for a large quake and a = comparableprofessional broad band seism= ometer for the same event.Regards, =Chriss Chapman= FONT>