Ballard, William Cyrus, Jr · New York [etc.] McGraw-Hill company, inc. · leaf 87
luded in the circuit or by the addition of anothersmall coil connected in series with the main coil and arranged 62 ELEMENTS OF RADIO TELEPHONY SO that it may be made to rotate inside the larger coil. Thischanges the mutual inductance between the two coils andhence varies the wave length by a… … Phones Fig. 29.—Simple crystal detector receiving set. of this type of variable inductance coil can be seen in Fig. 39,which illustrates a set employing a single circuit receiver ofdifferent characteristics. In operating a set of this character the movable contactin the crystal detector is brought…
Radio
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
