. The Bell System technical journal . ding improvement in performance they do not take fulladvantage of the possibilities of the unit type of construction from thestandpoint of simplification, owing to the fact that a number ofadditional parts are required to mount the unit on the existing typeof handset handle. The advantages of the unit type of instrumenthave been realized in a new design of handset introduced during 1937,about a million of which have been produced. This handset is shown * Presented at Summer Convention, Washington, D. C, June 21, 1938. 338 INSTRUMENTS FOR THE NEW T
. The Bell System technical journal . ding improvement in performance they do not take fulladvantage of the possibilities of the unit type of construction from thestandpoint of simplification, owing to the fact that a number ofadditional parts are required to mount the unit on the existing typeof handset handle. The advantages of the unit type of instrumenthave been realized in a new design of handset introduced during 1937,about a million of which have been produced. This handset is shown * Presented at Summer Convention, Washington, D. C, June 21, 1938. 338 INSTRUMENTS FOR THE NEW TELEPHONE SETS 339 with the new combined set in the photograph, Fig. 1, and in cross-section on Fig. 2. In designing this handset every effort has been made to obtain themaximum degree of simpUcity consistent with the electrical require-ments involved and at the same time to secure an attractive designwhich harmonizes with the other station apparatus on the subscriberspremises. Only three phenol plastic parts are employed; namely, the.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
