The Performance and Theory of Loud Speaker Horns

@article{GoldsmithThePA,
  title={The Performance and Theory of Loud Speaker Horns},
  author={A. N. Goldsmith and J. Minton},
  journal={Proceedings of the Institute of Radio Engineers},
  volume={12},
  pages={423-478}
}
(1) Experimental: By means of a vacuum tube oscillator to operate a loud speaker unit and a calibrated condenser transmitter, resistance-coupled amplifier, and a thermocouple and galvanometer, tests have been made at various frequencies to obtain the sound output from straight conical horns. The horns were made of heavy galvanized sheet iron and include lengths from 30 cm. to 305 cm. and final openings from 5 cm. to 90 cm. The results are plotted to show the sound pressure in dynes at the… CONTINUE READING

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