High frequency apparatus, design, construction and practical application; a practical treatise for electrical engineers, electricans, physicians, students and experimenters (1920)
Curtis, Thomas Stanley · New York, Norman W. Henley publishing company · leaf 232
spur-chuck and a center, it shouldbe covered with a winding of a single layer of cord. Overthe cord is placed a -^^ inch thickness of oiled paper, thena layer of ^g inch flexible mica and finally 4 or 5 additionalthicknesses of paper. Each layer of this insulation shouldbe tightly secured with… … Fig. 126.—Details of secondary winding showing wooden block or form uponwhich the wire is wound ■^This end is attained by first winding one section and then.reversing the secondary core upon the form and startingthe remaining half of the winding by joining the wire fromthe spool to the starting end…
Electric apparatus and appliances
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.