AMPLIFIED SPEECH
TELEPHONES FOR THE DEAF [Fkou Our Paeuamextaet Eepoetee;] WELLINGTON, October 31. A telephone refinement made possible by radio amplification valves has been adopted by the Post . and Telegraph Department for the . benefit of telephone subscribers suffering from deafness. A ‘ Gazette ’ notice announces a special charge of £1 for the installation and £3 extra for the annual maintenance of apparatus, comprising pedestal telephones and amplifier valve with batteries
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Bibliographic details
Evening Star, Issue 20321, 1 November 1929, Page 6
Word Count
69AMPLIFIED SPEECH Evening Star, Issue 20321, 1 November 1929, Page 6
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