. The Bell System technical journal . <. ^8 •^ a; ■ X ;? E o I c >> o .— i^ c ^o CJ J- ^ 9- tn — N 398 BELL SYSTEM TECHNICAL JOURNAL Aside from manufacturing economies, the reduction in coil size is ofimportance to the Bell System from the standpoints of plant construc-tion and installation. The size reduction is particularly important ininstances where only a few coils are required at a given point, as is thecase in program circuit loading. It is now practicable to enclose asmany as six coils, even of the larger size employed for loading programcircuits, directly in the cable splice
. The Bell System technical journal . <. ^8 •^ a; ■ X ;? E o I c >> o .— i^ c ^o CJ J- ^ 9- tn — N 398 BELL SYSTEM TECHNICAL JOURNAL Aside from manufacturing economies, the reduction in coil size is ofimportance to the Bell System from the standpoints of plant construc-tion and installation. The size reduction is particularly important ininstances where only a few coils are required at a given point, as is thecase in program circuit loading. It is now practicable to enclose asmany as six coils, even of the larger size employed for loading programcircuits, directly in the cable splice at a loading point. This dispenseswith the need for conventional cases, and reduces both manufacturingand installation costs. In the field of small complements using theinexpensive lead sheath type of case construction, it is now possible tofurnish as many as 100 of the small exchange area coils whereas 15 wasthe maximum number accommodated with the superseded coil III gives comparative weights and volumes of typical c
Size: 1127px × 2216px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
