. Practical wireless telegraphy; a complete text book for students of radio communication . Fig. 325A—Scout Airplane Equipped With Wireless Fig. 325B—Oscillating Valve Wireless Telephone Set Developed byMarconis Wireless Telegraph Co., Ltd. 312 PRACTICAL WIRELESS TELEGRAPHY AMwrrtR (SNJRMOR is obtained from it when the generator is in operation, it may be due to one of the followingcauses: (1) An open circuit in the armature. (2) An open circuit in the field windings. (3) The field current have been cut off. If the generator fields are fed with 110 volts D. C, whether or not t
. Practical wireless telegraphy; a complete text book for students of radio communication . Fig. 325A—Scout Airplane Equipped With Wireless Fig. 325B—Oscillating Valve Wireless Telephone Set Developed byMarconis Wireless Telegraph Co., Ltd. 312 PRACTICAL WIRELESS TELEGRAPHY AMwrrtR (SNJRMOR is obtained from it when the generator is in operation, it may be due to one of the followingcauses: (1) An open circuit in the armature. (2) An open circuit in the field windings. (3) The field current have been cut off. If the generator fields are fed with 110 volts D. C, whether or not the field current ison can be determined simply by placing a UO-voIt incandescent lamp in shunt to the fieldterminals. If any doubt exists as to the continuity of the field circuit, a test can be madeby placing a 110-volt lamp in series with the field coils, and if the filament does not glowit indicates that the circuit is open. If the circuit is continuous the lamp will glow dimly. If the voltage of the alternator under normal operating conditions is known, whetheror not the armature is generating current can be determined by placing an incand
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
