. Bell telephone magazine . one and TelegraphCompany and the International Tele-phone and Telegraph voiceways under the GulfStream made possible the first di- rect connection between the tele-phones of the Bell System and itsconnecting companies and those ofthe Cuban Telephone Company inCuba. At the time, these were the longestand most deeply submerged cablesin use for telephonic cables (each of 100 to 105 nauti-cal miles) were of English manu-facture, in most respects similar inconstruction to telegraph cables otthe period. Kach contained a singlecentral co
. Bell telephone magazine . one and TelegraphCompany and the International Tele-phone and Telegraph voiceways under the GulfStream made possible the first di- rect connection between the tele-phones of the Bell System and itsconnecting companies and those ofthe Cuban Telephone Company inCuba. At the time, these were the longestand most deeply submerged cablesin use for telephonic cables (each of 100 to 105 nauti-cal miles) were of English manu-facture, in most respects similar inconstruction to telegraph cables otthe period. Kach contained a singlecentral conductor insulated with guttapercha ami another outer copper con-ductor which, together with theground and sea, formed the returncircuit path. An unusual feature ofthe cables was a wrapping ot ironwire over the central was to provide loading to in-crease their efficiency—that is, theinductance of the circuit was in-creased by the use of iron. By present-day standards, these 104 Bell Telephone Magazine SUMMER.
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Keywords: ., bookcentury1900, bookdecade1920, bookidbelltelephonemag00vol2930
