. QST . 0 meters. 6BH6 oscil-lator, 6BH6 amplifier/multiplier, OA2 regu-lator. Requires volts at .45 amps., or at .25 amps. 250-300 VDC at 20 kit, with tubes: Cat. No. 240-152 $ Amateur NetAvailable wired and tested with tubes, $ E. F. JOHISSOIS COMPANY EASY TO LEARN CODE It is easy and pleasant to learn or ncreasespeed the modern way — with an Instructo-graph Code Teacher. Excellent for thebeginner or advanced student. A quick,practical and dependable method. Availabletapes from beginners alphabet to typicalmessages on all subjects. Speed range 5 to 40WPM.
. QST . 0 meters. 6BH6 oscil-lator, 6BH6 amplifier/multiplier, OA2 regu-lator. Requires volts at .45 amps., or at .25 amps. 250-300 VDC at 20 kit, with tubes: Cat. No. 240-152 $ Amateur NetAvailable wired and tested with tubes, $ E. F. JOHISSOIS COMPANY EASY TO LEARN CODE It is easy and pleasant to learn or ncreasespeed the modern way — with an Instructo-graph Code Teacher. Excellent for thebeginner or advanced student. A quick,practical and dependable method. Availabletapes from beginners alphabet to typicalmessages on all subjects. Speed range 5 to 40WPM. Always QRM. beats havingsomeone send to you. ENDORSED BY THOUSANDS! The Instructograph Code Teacher liter,ally takes the place of an operator-instructorand enables anyone to learn and master codewithout further assistance. Thousands of suc-cessful operators have acquired the code with the InstructograpbSystem. Write today for full particulars and convenient rental plans. INSTRUCTOGRAPH COMPANY. 4799 SHERIDAN ROAD, CHICAGO 40, ILLINOIS one now in existence, dealing with the basictheory of amateur radio in a way that will giveevery amateur operator a clear theoretical under-standing of how his apparatus functions so thathe may experiment intelligently and not hap-hazardly; and a book that will likewise serve as atext for the non-technically trained individualswho in increasing numbers are taking up thestudy of Citizen Wireless. *^ (e) Curiosities: The editor of QST announced that he hadon hand enough Calls Heard lists submittedby amateurs to fill several thousand pages of themagazine.^^ Station 9ZN covered the Moran-Leonard fight,at East Chicago (20 miles from the windycity) with a De Forest radiophone and a port-able ^-kw. radiotelegraph spark was done for the Chicago Herald Exam-iner. ^^ Arthur W. S. Davis (ILD, of Lowell, Massa-chusetts), an elderly amateur, had his radio sta-tion moved into his sick room, during his lastillness: and he worked it al
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
