Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 28
ameter, so that they will slip on the arms of the iron bar justdescribed. These spools are, of course, best made in a lathe,but the writer has made them with no tools but a ^ inch bit, andbrace, and a sharp jack knife. In the latter case it is better to EASY ELECTRICAL EXPERIMENTS. 19 cut out the… … On each spool wind nine layers of No. 18 double cotton cov-ered magnet wire. Be sure and wind each layer evenly andtightly, as this adds much to the appearance of the finished coil.When wound, slip the two spools of wire upon the iron core, andwedge them tightly in place. Connect one end of the…
Electric apparatus and appliances · Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
