OCR Text |
Show K ENG!NEERS TACKLE DISTORTION PRORi fm I Ionance Interferes Transmission if Music ( p, GODLJ I ,-, Radio luthorttjr. JS ever be able to radio for real music? aepends chiefly on two .....mpnt of transmi:- 'Statin. tone quaM-j quaM-j to the antenna, perfection of receiving! to progress made alor.K Srinc "e part few i EJcted that rhc tone -aftcd through the Mr may improved. iSttiental law of ree-all ree-all our radio ! L , Curvo ()f P &K.rt' showing Diatoruon Of Mmuds ' ' Resonance puts In i, The dlffleulttea will hav been "uncounted In th broadcasting sta-I sta-I nons long before ihey will havr hen ' overcome in tho stations of the thou- I 'nds of listening amateurs. Each ro;idcnstlnK station la bolng concentrated concen-trated on by one or more trained engineer. en-gineer. While the majority of the re- ' j celvln stations will, for nome time to come, be equipped with radio ap-'ral.j ap-'ral.j , th. r built by the amateUC nimaelf. or purchased from concerns w0 ha not made It a point to so " Ugn the equipment as to tako ears' "I these distortions This ha. hor:n particularly true of' loud-xpoaklng receivers, and ampll-1 Hers used to Rive the power for drlv-inK drlv-inK thesw loud speakers nitortlon I occurs In th.- amplifier n, uum lube, in the transformer, and in the reproducing re-producing jnagnotl. .,nd its horn Mont of this dlatortion is a result f attempts to use equipment , not designated to carry the necessary! snerglejK Some of It is the result of falbe resonance within the transformers transform-ers or reproduclnK magnetic telephones. |