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Show Find Power Circuit Can Be Used as Phone Line VINITA, OKLA. Engineers for the Grand River Dam authority announce an-nounce they have found through experiments ex-periments that high voltage transmission trans-mission lines of the project will carry car-ry the human voice and can be used for telephone lines. Chief Engineer W. R. Holway said the high power lines from the hydroelectric hydro-electric project at Disney, Okla., to j-Muskogee, j-Muskogee, Okla., would be used for L telephone service between the two points if his plan is accepted. The principal of radio is applied in using power transmission facilities facili-ties for carrying sound, according to Holway. "Electric carrier equipment is essentially es-sentially a low-powered radio transmitter," trans-mitter," Holway said. "The same type circuit is uf.ed and standard radio tubes are part of the equipment. equip-ment. "The principal difference is that the earner transm itU-r is not connected con-nected to an aerial, but directly to the high vollnre line." Use of this "earner" system would .'nvc the cort of addir.g two-wire, two-wire, low-voltage tflephone Circuit on the jT-rnile line to Muskogee. |