Keely
"In the Center is placed a resonating intensifier, through which the sympathetic currents pass. By a spiro-vibrophonic arrangement these currents are diverted toward the neutral center of the earth. This device is the sympathetic multiplying agent for the polar field, and the negatizing agent for the anti-polar field. When under action it is entirely subservient to the transmitter, both in regard to high intensification and thorough neutralization of polar and depolar interchange." [see Rhythmic Balanced Exchange], [The Operation of the Vibratory Circuit]