" New Elfrad circuit and coil verified "
I am pleased post the following spectras as recorded with the new Elfrad circuit as used with my Induction coil. As you know I am currently using the coil with the shield grounded via four eight foot ground rods. The secondary of the coil ( seven and one quarter ) miles of # 28 magnet wire wound on an iron lamination core feeds the input of the Elfrad circuit. Now you have ( one very large stepup transformer )The first spectras you will see are through the courtesy of the USGS. Seismic activity was recorded slightly before 1400 MT on this day March 26th. 2003. The spectras below are from monitoring stations here in the states although many other stations around the world recorded this event. The final spectras you will see are of this verified seismic event as recorded by the Elfrad circuit and my coil. My current data acquisition board and software made it necessary to divide the event in to four separate spectras.
Cathedral Cave, Missouri
Texas
Harvard, Mass.
Alaska
Florida
New Mexico
Arizona using Elfrad Circuit and Induction Coil
