. Practical wireless telegraphy; a complete text book for students of radio communication . Fig. 124—Showing How Coupling is Changed by Fig. 125—Square Coil Type Oscillation Transformer. COPPER STRIP as in Fig. 127. The inductance ofthe latter type is altered by meansof a plug contact. It is, of course,essential that adjacent turns be wellinsulated from one another andseparated so that there will be nosparking between them. Also thecoil must be mounted on an insu-lated base or on specially devisedinsulators to prevent the high volt-age current leaking to nearby con-ductors, or co
. Practical wireless telegraphy; a complete text book for students of radio communication . Fig. 124—Showing How Coupling is Changed by Fig. 125—Square Coil Type Oscillation Transformer. COPPER STRIP as in Fig. 127. The inductance ofthe latter type is altered by meansof a plug contact. It is, of course,essential that adjacent turns be wellinsulated from one another andseparated so that there will be nosparking between them. Also thecoil must be mounted on an insu-lated base or on specially devisedinsulators to prevent the high volt-age current leaking to nearby con-ductors, or conducting material. 105. The Short Wave Con-denser.—One form of this con-denser as constructed by the Mar-coni Company, has four glass platesIS by 15 inches covered with tinfoil 12 by 12 inches. Each plate has a pig. 126—continuously variable Aerial Tuning inductance.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
