Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 57
ARMATURE CORE, FINISHED … SECTION] THR0U6R CENTER long and as slim as can be secured. The heads of these screwsshould be counter sunk below the surface of the wood. Therehas now been formed a wooden spool, mounted upon a shaft, EASY ELECTRICAL EXPERIMENTS. 46c the heads of the spool being removable. Its appearance will…
Electric apparatus and appliances · Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
