Show loud aa speaker volume Is provided by new tube A still turner and inure powerful am plinar tube Is announced by the ha llo corporation of america it Is descg nulen us lie U 2 1 l potter amplifier and Is capable of over three tildes as energy 11 the U long lie power amplifier tube for maximum vi luine and ti ne quality in lannue reception hie U 2 Is larer in lae lhnn alif U au hebi e Is llie it the new p acner tulie Is ot the lin proved crated all ti n tape which in ozeit and tobio opt lift alln parte Is beail ined tall and n irrow as in the U 81 llo ll o standard U r taic anse is ou the new lube abl new tube will provide a tar loud blunie without distortion than 1 is hento fore been possible in licud speakers and in the of a plurality of loud speaks ers froni a injun mn jun amplifier as in hospital and exposition work it Is to note that while the plate voltage has not been materially in over that of the U the required plate Is three stineo as foreit as for the U obviously while the new tube Is capable of enormous volline far more alian can bu utilized in the largest of living rooms it Is hinry to operate it at full output instead it guv be aiu aloyed at but a fraction of its full capacity thus securing output at all ample reserve power it Is ahli reserve of power which gives tint to reproduction often referred to as depth or timbre secret radio speech Is purpose of new device an electrical in hleb appun antly understood and translated unan ds over radio into clear wa included lu ll 11 ns recently at the of Us building before a gathering of madison units of the american institute of I 1 electrical liina sergiu Ser I 1 fl aie telephone lauora korv engineer gave the demon alons the machine was designed in con lection with rado tr uis nillon s terns to niale secret adur atur il speech ones are distorted to anale them co lla terriers teri ers an electric pick up trans Is held in tn nt of horn alie original speech in I 1 nellei was clearly understandable understand ible air grace alo and ex pl alneil an jariis en ables persons who have lost their larynxes la through surgical operations to talk other dellies included a telephone receiver by which deaf persons can be taught to receive con vers atlon a through the angers and methods of carril ng long distance telephone cills economically over alne anstead of heavier copper wires |