American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 122
are thus connected, the other groups being left inoperative. All the groundplates are joined together and brought to the screw-post g, but only so many of themas may be opposite the groups joined to the strip s will be active. The externalconnections of the condenser are made at the screw posts h… … STANDARD CONDENSER. The ordinary condenser used in telegraphy is illustrated in Fisf. 78. The capacity ofthese condensers is generally stamped on their ends—it ranges from |^ to 10 or moremicrofarads. FIG. 78,
Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-331-203.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-468-240.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-707-411.webp)