RADIO AIDS ENGINEERS
By a mere chance experiment in South Carolina it was found that radio could detect defects in tramway lolling stock. Complaints had been received that the passing cars caused interference in the receiving sets, ana to test if the cars were really responsible for the interference a receiving set was operated from an aerial running parallel with the overhead tram--way wires. The engineers were suprised to find tha* by analysing the different noises made in the receiving set it was possible to detect faults not only with the overhead wires, but also with the tramcars, such as motors making bad contact, imperfect wheels, and defective brakes. As a result of these experiments radio receiving sets are largely used by electrical engineers throughout the United Slates. In industrial concerns in Sydney, where there are many electrical motors in use for propelling different makes of machinery, it has been found that overloading and mechanical defects can be detected by the trained car of the electrical engineer by means of a radio rceiver.
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https://paperspast.natlib.govt.nz/newspapers/HC19271004.2.3.2
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Horowhenua Chronicle, 4 October 1927, Page 2
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173RADIO AIDS ENGINEERS Horowhenua Chronicle, 4 October 1927, Page 2
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