The design and test of a new type of telephone repeating coil (1915)
Turner, Hubert Michael · leaf 18
fesscr Swing in his booh on 1: ^v.etic Inrnotion inIron and Other Metalfi (_p_es lis and 128) states that for ex-tremely weak magnetising forces the value of jx maj fall below 100. A fev, examples showing the actual value of p. in the case of 5 iron-cored coils used for telephone purposes may be of… … Prom the inductance chart, page 47, of the Brooks and Turnerbulletin it is found that from the same wire C.00075 henriescould have been obtained without the use of iron, provided ithad been wound into the prescribed shape for maximum inductance.In other words, this is equivalent to an effective…
Telephone · Electric coils · Theses
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