Core-less induction coils in telephone service (1907)
Smith, Claude E, Stewart, Walter M · leaf 26
6 The secondary was now moved about a common diameter of the twocoils, (see diagram 5 of coils) through the same angles as before,but the point of silence was even more difficult to find. Therewas a more sudden entire deminishing of sound as the ninty degreerelation was nearly reached. The…
Induction coils · Telephone · Telephone systems · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
