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- · New York, T. Audel · leaf 132
type; thereare required an extremely large number of relatively small pieces ofinsulating material, which necessitates careful workmanship to preventdefects in the finished transformer, when thin or fragile material is used. Both core and shell transformers are built for all ratings; for…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-132-43.webp)
