Testing of new design Elfrad circuit with induction coil. The coil's shield is being used as a single turn primary winding. This primary is connected to four eight foot ground rods driven in to the ground near the coil's feed. The secondary winding that the shield surrounds consists of seven and one quarter miles of # 28 magnet wire wound over a laminated iron core. The leads from the secondary feed an instrumentation amplifier which is the first stage of the new Elfrad design. The spectras below are samples. As to what they are time will tell as more tests and verifications have been made. As soon as I can build another computer with more RAM near real time spectras will be uploaded to this site so all of us can observe. The spectras you see cover a resolved frequency range of 0 Hz. to 20 Hz. In some of the spectras the first two Schumann resonances can be seen from time to time.
