Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 434
copper bit becomestoo hot, it will begin to volatilize the resin, thus calling attention to this fact, whereuponthe electricity should be turne4 off from the tool. 3,088 HAWKINS ELECTRICITY Ans. Heat to redness and then plunge into cold water,when most of the hard oxidized surface will scale off.… … WK\2t K>yQ \KK\5 rrrrr^ -g^ iiiiiiji»ii»»ninnnmii Fig. 4,456.—Picking up solder with a hot bit. This is the proper method for small work.Rest the bar of solder on some support as a brick or piece of wood and touch it with theend of the hot bit. Some of the solder will melt and remain on the bit.…
Electrical engineering
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