Dental and oral radiography : a text book for students and practitioners of dentistry (1916)
McCoy, James David · St. Louis : Mosby · leaf 47
ft iron whichis known as the magnetic core. The outer coil or secondary is made up of agreat many turns of fine insulated wire. It hasbeen estimated that in a 12-inch induction coilthe secondary coil is wound with between twentyand thirty miles of wire. This, of course, makespossible an enormous…
Radiography, Dental · X-rays · Teeth · Mouth
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
