Elementary telegraphy : a manual for students; written specially to meet the requirements of the ordinary grade of the subject as published in the syllabus of the city and guilds of London Institute (1910)
Pendry, H. W. (Henry Walter) · London ; New York : Whittaker & Co. · leaf 123
72.j m.f. cuhdeiiser. purposes in duplex circuits is divided into two sectionsAvliich can be usetl separately, but if joined by the strapshown in illustration Fig. 89 and Diag. 90, it has a tola!capacity of 725 m.f. by steps of I m.f. The capacity maybe varied by inserting pegs between the brass… … 0 0 a a 0 0a Ill:. .I.—Coiiiiettioiis of Tj condiii circuits, it is necessary to nse a condenser divide(| intothree sectiinis. The cajxicity values of this triplecondenser are indicalcd in Fi<;-. .)1. IVar in miinl that 0 4 2 1 ■5 •25 10 ~ Q (T w 2J u ■5 @ 0 r® -- 4J 2 u •5V—^ •25) ~n 01 1.…
Telegraph
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