. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 28 BELL SYSTEM TECHNICAL JOURNAL then d2 = i {Gi + G2 — G\i) which indicates a method by which large grounded capacities can be balanced against three variable capacities, only one of which need be calibrated, and that one need be no larger than the required direct capacity. Two-setting methods, as illustrated by the Colpitts and potentio- meter methods, rest upon the possibility of connecting one of the associated direct capacities between opposite corners of the brid
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 28 BELL SYSTEM TECHNICAL JOURNAL then d2 = i {Gi + G2 — G\i) which indicates a method by which large grounded capacities can be balanced against three variable capacities, only one of which need be calibrated, and that one need be no larger than the required direct capacity. Two-setting methods, as illustrated by the Colpitts and potentio- meter methods, rest upon the possibility of connecting one of the associated direct capacities between opposite corners of the bridge where it is without influence on the balance, and not altering any associated direct capacity introduced into the working arms of the bridge. Numerous variations of these methods have been considered which may present advantages under special circumstances. Thus, if conductors 1, 2, 3 of Fig. 7 are in commercial operation, and it is not permissible to directly connect two of them together, a double bridge might be employed with a testing frequency differing from. Fig. 7—Double Bridge for Direct Capacity that of operation. A telephone is shown for each ear, and a constant total direct capacity is divided between the three branches in the proportion required to silence both telephones. One-setting methods attained ideal simplicity in the Maxwell discharge method, but we found it necessary to use alternating current. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Telephone and Telegraph Company. [Short Hills, N. J. , etc. , American Telephone and Telegraph Co. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
