High frequency apparatus, design, construction and practical application; a practical treatise for electrical engineers, electricans, physicians, students and experimenters (1920)
Curtis, Thomas Stanley · New York, Norman W. Henley publishing company · leaf 155
st ball of brass.Solder the topmost end of the winding to this ball. Sol-der a piece of flexible lamp cord to the lower end of thewinding and secure in place so that the fine wire will notunwind in use. The oscillation transformer is not com-plete with the exception of its primary which is so… … 1 Fig. 74.—The coil used for DArsonval and Thermo-Faradic treatments by a strip of corrugated paper packing. Bindings of tapeat frequent points hold the turns together. Connection tothe turns is made by means of brass clips formed by bend-ing pieces of the brass ribbon in two and soldering a…
Electric apparatus and appliances
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