Radio Broadcast - 1923, August - 86 Pages, 8.5 ... - VacuumTubeEra

More documents

Recommendations

Info

. Pioneer'. .*JUNK WORTH A MILLION!With this very equipment, Edwin H. Armstrong discovered regeneration the receivingsystem that revolutionized radio reception and made the inventor famousEighteen Years of\ -Radio'..Amateur(TheDays When Hams Could Send on Any Wave. The "Junior WirelessClub Limited," Which, in 1911, Became the "Radio Club of America."Experiments and Inventions. Early Measures to ReduceInterference. Recent Activities Sponsored by the Radio ClubBy GEORGE E.BURGHARDPresident of the Radio Club of AmericaIt is with pleasure that we present this paper on amateur radio, prepared by one of the foremost Americanamateurs. This paper has just been read before the Radio Club of America at the close of a successfulseason of lectures.We feel sure that the readers of RADIO BROADCAST will be glad to learn that the Radio Club of Americahas chosen our magazine for the exclusive publication of its papers, and we wish to express our appreciationof the compliment paid us.Such solons as Professor M.I. Pupin, Professor L. A. Hazeltine, Professor J. H. Morecroft, E. H. Armstrong,W. C. White and many others, present to this Club papers of importance, in which we feel sure thatyou will find great interest.The second of these papers, which will appear in our September issue, deals with the latest of all the vacuumtubes those employing thoriated filaments and is the work of Mr. W. C. White, of the General ElectricTHE EDITOR.Company, who helped develop the tubes.
, office.'Eighteen Years of Amateur Radio291y1N AN attempt to create a precedentit is earnestly hopedwhichwill be followed aslong as the Radio Club of America exists,this paper is presented as the first of aseries of papers by the Chief Executive,describing the activities of the organizationand its members during the last twelvemonths. As this is the first of the series,however, it may be well to review the achievementsof the Club from the time of its inception,and even the work of its members beforethe idea of organization had materialized.In this way it is possible to gain a good idea ofthe beginnings of amateur radio as well as theearly strivingsof the art in general,since theClub numbers among its members many ofthe radio pioneers.It is the earnest hope of the writer that theaforementioned precedent will be followedclosely and that each succeeding President ofthe Club will prepare and read a paper coveringits accomplishments during his period ofThus, an accurate record of RadioProgress can be maintained and should proveof considerable interest and value both to thepresent and future radio generations.The early days of radio were indeed days ofdarkness and pioneering days when traffichad to be handled with a coherer and a straightgap spark transmitter. This meant that thepersonnel was really the most importantfactor, and operators were developed whocould copy coherent messages under conditionswhen the average mortal could distinguishnothing but crashes and noises. These men,who learned their lessons in a very hardschool, learned them well and are in manycases the prime factors in radio to-day.At the same time that the commercialcompanies were making their initial stand, thefascination of sending messages through spacewithout wires began to take hold of the youngergeneration, and we have the beginning of amateurradio, about 1905. Of course, there hadbeen private experimenters prior to this, butthe real radio amateur had his beginning in theend of 1904 to 1905. Small boys began to inveigletheir parents into giving them moneywith which to buy wire and other material tobuild their own sets in imitation of those usedby the commercial companies. Their effortswere gallant indeed, for there were no booksBACK IN 1910, WHEN THE WRITER WAS AN ARDENT FANGeorge Burghard operating one of his first transmitters, located at i East 93rd Street, New York City
Page 4: 270 Radio BroadcastPREPARING MESSAG
Page 10 and 11: 276 Radio Broadcastis the first tim
Page 12 and 13: 278 Radio BroadcastTHE BOOM IS ON I
Page 14 and 15: 280 Radio BroadcastWest Coast to Ha
Page 16 and 17: DR. MACMILLAN AT THE NEWLY INSTALLE
Page 18 and 19: 284 Radio BroadcastDONALD H. MIX, R
Page 20 and 21: 286 Radio BroadcastHiram Percy Maxi
Page 22 and 23: 288 Radio BroadcastIF AN ESKIMO BAB
Page 26 and 27: RadioBroadcastTHE RECEIVERAT 2 PMNo
Page 28 and 29: 294 Radio Broadcastsiderable intere
Page 30 and 31: 296 Radio Broadcastof course radio
Page 32 and 33: 298 Radio Broadcastafter trying sev
Page 34 and 35: 30ORadio Broadcastthan he might rea
Page 36 and 37: 3O2 Radio Broadcastcourt was broadc
Page 38 and 39: THE PRIZE-WINNING CONTRIBUTIONS ARE
Page 40 and 41: 306 Radio Broadcast2 transformers a
Page 42 and 43: 308 Radio Broadcastas short as poss
Page 44 and 45: 3io Radio Broadcastfind that the st
Page 46 and 47: 312 Radio BroadcastFROM SAILOR TO '
Page 48 and 49: The Grimes Circuit with OutdoorAnte
Page 50 and 51: Radio Angling and Fisherman's LuckT
Page 52 and 53: 3 i8 Radio BroadcastSOMETHING DOING
Page 54 and 55: circuit,32ORadio Broadcastwound wit
Page 56 and 57: 322 Radio Broadcasthighest sensitiv
Page 58 and 59: 324 Radio BroadcastMR. CROSLEY BROA
Page 60 and 61: 326 Radio Broadcastinductance is va
Page 62 and 63: 328 Radio Broadcast^^V'VYVNA/VN/Y^^
Page 64 and 65: 330 Radio Broadcasthappens that its
Page 66 and 67: 332 Radio Broadcastin the classroom
Page 68 and 69: 334 Radio Broadcastaudience which i
Page 70 and 71: Sets for the Great OutdoorsBy A.HEN
Page 72 and 73: 338 Radio BroadcastTHE COLIN B. KEN
Page 74 and 75:
R\DIOA PracticalSuper-Heterodynewit
Page 76 and 77:
342 Radio BroadcastDL 35
Page 78 and 79:
etween344 Radio BroadcastREAR VIEW
Page 80 and 81:
346 Radio Broadcastcompletely. The
Page 82 and 83:
348 Radio Broadcastchanging the rhe
Page 84 and 85:
The GridQUESTIONS AND ANSWERSThe Gr
Page 86:
RadioBroadcast
show all

Radio Broadcast - 1923, August - 86 Pages, 8.5 ... - VacuumTubeEra

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?