. Practical wireless telegraphy; a complete text book for students of radio communication . Fig. 34—Development of Wave Winding. in winding S increases or decreases accordingly as the number of turns in S aregreater or less than in P (see paragraph 31). The apparatus built upon this principle is known as a transformer_ and thedifferent types are called step-up or step-down with respect to the ratio of theprimary and secondary turns. 34 PRACTICAL WIRELESS TELEGRAPHY. The essentials of a transformer are: (1) A primary winding; (2) A secondary winding; (3) An iron core. In order that the current
. Practical wireless telegraphy; a complete text book for students of radio communication . Fig. 34—Development of Wave Winding. in winding S increases or decreases accordingly as the number of turns in S aregreater or less than in P (see paragraph 31). The apparatus built upon this principle is known as a transformer_ and thedifferent types are called step-up or step-down with respect to the ratio of theprimary and secondary turns. 34 PRACTICAL WIRELESS TELEGRAPHY. The essentials of a transformer are: (1) A primary winding; (2) A secondary winding; (3) An iron core. In order that the current may be induced in the secondary of a transformer, theprimary winding must be traversed by either a pulsating or interrupted direct currentor an alternating current. Fig. 35—Construction of Crocker Wlieeler Motor Generator Armature. / / \ Ca«HUT»lfl« StOIS CWUiJlATOR StSUtMTS. TUMiNAis mamt COILS \ CSKMUWOR 5L0TS-tllT« [CCtLS «5fRrtD
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
