File:Bell telephone magazine (1922) (14570301387).jpg

Identifier: belltelephonemag26amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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te means . . .and with the rest of the knownworld. At a time when the farthest stretch of the voice by wire was fromNew York to Boston, such a forecasthad in it the pioneering spirit ofAmerica. By 1892, only seven years later,long distance lines had reached west-ward to Chicago. Such were thetechnical difficulties encountered be-yond that distance, however, that itwas not until 1915 that the vacuum-tube amplifier, developed into a tele-phone repeater, finally made conver-sation possible between New Yorkand San Francisco. Then was madepracticable the fulfillment of thatprophecy of a telephone system link-ing people throughout the UnitedStates; then the oceans bounding ournation became the new speech fron-tiers. The next stage in telephone expan-sion began that same year, 1915.Successful experiments by radio wereconducted between Arlington, Vir-ginia, and Paris, France, transmittingone-way speech across the ocean forthe first time. Further developmentsin the field of the vacuum tube had
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America Is Calling 37 given telephony a new weapon to con-quer distance. A decade later, transoceanic radiotelephony was ready for public use,and Bell System overseas telephoneservice was inaugurated on January7, 1927. On that significant dayWalter S. Gifford, President of theA. T. and T. Company, made thefirst overseas call to Sir G. EvelynMurray, Secretary of the GeneralPost Office in Great Britain, over theinitial New York-London radio tele-phone circuit. Telephony had reachedits first overseas beachhead on itsworld-wide advance. After the official New York-Lon-don opening, the overseas servicetruly began its global march. Withineight years this expansion was dra-matically demonstrated when, onApril 25, 1935, Mr. Gifford againmade an overseas call, but this timeto Theodore G. Miller, then VicePresident in charge of the Long Lines 77/t first circuit to London was bylong wave, utilizing a frequency of 60kilocycles and transmitters of 200 kilo-zvatts. This tremendous power waspoured i

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