The information from the Physical encyclopedia of 1992
about the cylindrical magnetostriction oscillators.
desire we can use for creation of a cylindrical oscillator the
design, similar represented on figure, which here I outlined by
a red marker. Only we should remember, that according to our
needs the sound waves will radiates inward of the cylinder,
therefore loops of the electric wires covering walls of the
cylindrical core of a oscillator, we should place outside.