Electricians' operating and testing manual; a hand book for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers, and electricians generally (1916)
Horstmann, Henry Charles, Tousley, Victor Hugo, 1875- joint author · Chicago, F.J. Drake & co · leaf 122
ires may be wrapped about a piece of wood aboutan inch long and the whole immersed in the water.Connect the same wires, one at a time, to the samepoles of both switches and see that the bubbles comefrom the same wire. A switch board arrangement often used with eithershunt or compound machines,… … JLi jp i i f JLi 11111
Electrical engineering · Electric testing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-249-110.webp)
