. The design and construction of a radio station for the Armour Institute of Technology . alues L and, lve circuits will oscillate atany desired frequency. These oscillationsproduce currents in the coil ^1 and theantenna which radiate as radio enerin t] . of electrc - Lc w« res. V5 ...o of the smallsize festern Electric kitting tubes ted in parallel u ted on thefront of the transmitting panel, -heooils forming the oscillation circuitare placed below the tubes, -he motorgenerator which furnishes the plate poten-tial of 300 volts is placed on the plat-form in back of the rotary converter. jhes e
. The design and construction of a radio station for the Armour Institute of Technology . alues L and, lve circuits will oscillate atany desired frequency. These oscillationsproduce currents in the coil ^1 and theantenna which radiate as radio enerin t] . of electrc - Lc w« res. V5 ...o of the smallsize festern Electric kitting tubes ted in parallel u ted on thefront of the transmitting panel, -heooils forming the oscillation circuitare placed below the tubes, -he motorgenerator which furnishes the plate poten-tial of 300 volts is placed on the plat-form in back of the rotary converter. jhes enable the set to be throian ontothe antenna and ground and the transmit-ting ey to be placed in circuit. 3 diagram of connections is shownIn -i : 34. ay in series with theplate battery starts the system to oscil-lati. Ha depressed. Wave lengths tunedfor are the same as for the spark setthat is, 20o and 5 jrs. - quarter kilowatt -exieral electricbulb is available for this purpose butno suitable I,00C volt source of plate potential is procurable. - ! bulbs gave . I ampere in antenna, A. 76. ecaioLusiojsr, work upon the construction of thestation continued through the last weekof school. It was expected that the iiadioClub members would help with this phaseof the work hut outside of two faithfulmembers very little aid was this account little testing and actualoperating with other stations was done. ■e carried on damped signal communi-cation with local stations. Commercialstations situated on the §reat Lakescould be heard on the damped wave the undamped set, messages were copiedfrom all the iiaval stations such as-finnapolis, Maryland and iaan Diego, Cali-fornia and Pearl Harbor, Hawaiian Islands. Other stations heard were Mexico City,and Carnavan, .^ales. 77. BIBLIOGRAPHY. Mills, John xtadio OommunioationBucher, irractical wireless telegraphy Vacuum Lubes in wireless Oommuni- cationCircular of the Bureau of Standards ^adio Instrument
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Keywords: ., bookcentury1900, bookdecade1920, bookiddesignconstr, bookyear1920
