. Practical wireless telegraphy; a complete text book for students of radio communication . GENERATORRHEOSTAT ^LOW POWERSWITCHAERIALAMMETER LIGHTNINSSWITCH COUPLINQADJUSTER QUENCHEDGAP ROTARVGAP Fig. 257—Front View of tlie Marconi J^ K. W. 500 Cycle Transmitter. 238 PRACTICAL WIRELESS INDOCTANCE. TUNING STEP UPTRAN5F0RKAER MOTORGENERATOR ROTARYGAP Fig. 258-Side View of the Marconi % K. W. 500 Cycle Transmitter. STANDARD MARINE SETS OF AMERICAN MARCONI CO. 239 is in the full running position. Thisprevents the magnet windings over-heating as the potential differenceacross the motor


. Practical wireless telegraphy; a complete text book for students of radio communication . GENERATORRHEOSTAT ^LOW POWERSWITCHAERIALAMMETER LIGHTNINSSWITCH COUPLINQADJUSTER QUENCHEDGAP ROTARVGAP Fig. 257—Front View of tlie Marconi J^ K. W. 500 Cycle Transmitter. 238 PRACTICAL WIRELESS INDOCTANCE. TUNING STEP UPTRAN5F0RKAER MOTORGENERATOR ROTARYGAP Fig. 258-Side View of the Marconi % K. W. 500 Cycle Transmitter. STANDARD MARINE SETS OF AMERICAN MARCONI CO. 239 is in the full running position. Thisprevents the magnet windings over-heating as the potential differenceacross the motor armature rises. Adynamic brake attached to the motorstarter consists of a shunt armatureresistance, which is connected acrossits terminals by a special set of con-tacts attached to the starter. A 2-pole single-throw switch dis-connects the motor from the powerline. A single-pole switch permits thecircuit of the generator field to beinterrupted as amatter of safety dur-ing adjustment of the set and a sec-ond D. P. S. T. switch breaks thecircuit from the generator to thetransformer. The remainder of the equipmentconsists of a Type I aerial switch,Type 106 receiving tuner and flushswitch for starting and stopping themotor generator from a distant an aeriaUammeter, range 0-10amperes, and a dire


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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917