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Show "WIRED WIRELESS" FEASIBLE BUT AERIAL BEST l Using Lamp Socket Is Pos-1 sible But May Cause Trouble ay PAUL V GODLElf I America's Porcmosl Radio luthortty Ualnsr the electric lnmp socket ns a source if radio signals Is certainly pos-slhlf pos-slhlf Hut many a radio fun whi lilfd Qeheral sjilre's 'wired wireless" soon found thenuaelves in trouble. As a matter of f.ict any elevated Conductor, even though It bo but n poor one. will aervc M a coilectoi ot eleOtlrO-niagnetia encricv.. If the re- celver be connected to the hed springe and the Incoming signals are sufficiently suffici-ently powerful, the broadcast pro-Krams pro-Krams may be received in this man-ner man-ner This has been tried bj many amateurs, Screen doors, door bell wires, unused un-used barbed wire, which does not actually ac-tually touch earth, and finally, the j Oleotrli light suppl;, wires within the j hi.vn,.- h:iv- been lib-d .hoc e-s.sfull". t I KK1 NT IN LINE The thing which strikes one as odd ( ) CONHLCT TO ONC S TO JLT about the connection to the aourCe ol 1 electric power, is that these wlrea are alreads carrying current, it s 'bis same fact that brought disaster either : to the fuse- in th circuit or to the radio receiving apparatus itself in mosl elet 1 1 lc auppls s; stems, one Side of the lln ih grounded. This step Is taken as f protection to the system should in; thing fro out of order or-der Inasmuch as tho radio rec eiving equipment is also grounded when connection con-nection is made through the lamp socket to the supply line, there Is a chance that tho connection will be made to the ungrounded wire. If this is done, current will flow in unlimited quantities. Any fuses In the circuit mi blow out or, if the windings of the radio receiver are of mail gaugi copper wire, they will I burn up, The currents produced 111 a radio receiver tlti nai a an lncomprehen- slhle ran fr ni positive to negative In character The rate of these alternations alterna-tions are usually up in the hundreds of ' thousands. The currents produced In an electric .supply line by the generators gen-erators In the power house, are also alternating currents, but their rate of, alternation from positive to nogative ' is comparatively slow, usually being about 60 times a second. APPLIC ATION U small condenser a device consisting con-sisting of alternate layers of con- ( ducting insulating material la con-i ed between the radio receiving set and the electric 1'km "rtia no damage; to thu iuse .md the apparatus Oflllj ItttUll. j. This small condenser "will allow the ,, high frequency current to pasa freely L while the lOM fiequency (lifting cur-I, rrriits will iind It impossible to fofce , their way through Thus the wires ' iT e 1 w i) Jll rjlOSl Dm apeaking generally, an oui-donrj Antenm Will be found to be far super-,, lor to thin Wired . Ireles- t In many places the electric light , c will round 'eleis M a" antenna. When the building la of: steel, or the steel conduit through which It run be Itself grounded, the u Ire will not act as an aerial. Tho real application of the "wired wireless" principle would consist I " broadcasting program over the lighting light-ing wires directly and not through the ether. A comparatively low power transmitter would serve admirably for this purpose. OO . I .. |