The design and test of a new type of telephone repeating coil (1915)
Turner, Hubert Michael · leaf 52
a maximum, which is the thing that is wanted. By referring to rig. 18b, page CI, of the bulletin previouslymentioned, it will be found that for 8600 feet of I~o. 22 wire the i ■ - 6fi radius of the cere should be 1.9 inches, the thickness of winding 1.9 inches and the length 2.5 inches. These… … 23 III EB8I8. Since t:ie effective resistance of the regular type of tclo-jphoiae repeating coils, at voice frequencies, is considerablygreater than the resistance to direct current it is evident thatthis increase is cue to iron losses. It was suspected that anappreciable .part of this loss was due…
Telephone · Electric coils · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
