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The Telephone System of the British Post Office: A Practical Handbook. E-book. Formato PDF
T. E. Herbert
edizioni Forgotten Books collana , 2017
The primary Object Of the articles was to describe in detail the trunk system; but it was considered desirable to give some account of first principles, and accordingly the transmission of speech, transmitters, receivers, and, in fact, telephone stations generally, were brie?y described. The writer is aware that much...