Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 130
r thin white demy paper soaked adopted. The beginning of the secondary in the rosin mixture, and allowed to wire on the reel is connected with one become hard. Whichever material be of the binding-screws of the galvano- used, it is cut in strips a little wider meter, and the end of the wire that… … cylinder, the reel-ends must now be put The 2 ends of the jirimary coil are con- in place, and, when firmly set, the nected with the battery, and if there spaces between the ends of the layers of wire and the inside of the reel-ends are be no fault, the needle of the galvano- meter will be…
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
