Cyclopedia of Telephony Telegraphy Vol 1 8 7
Cyclopedia of Telephony Telegraphy Vol 1 8 7
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In our eReader you can find the full English version of the book. Read Cyclopedia of Telephony Telegraphy Vol 1 8 7 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Cyclopedia of Telephony Telegraphy Vol 1 8 7
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To quickly assess the difficulty of the text, read a short excerpt:
It is obvious that an up-and-down motion of the hook leverwill move the long spring _9_ in such manner as to cause electricalcontact either between it and the two upper springs _7_ and _8_, orbetween it and the two lower springs _10_ and _11_. The hook is shownin its raised position, which is the position required for talking. When lowered the two springs _7_ and _8_ are disengaged from the longspring _9_ and from each other, and the three springs _9_, _10_, and_11_ are brought into electrical ...engagement, thus establishing thenecessary signaling conditions.
[Illustration: Fig. 83. Long Lever Hook Switch] The right-hand ends of the contact springs are shown projecting beyondthe insulating supports. This is for the purpose of facilitatingmaking electrical joints between these springs and the various wireswhich lead from them. These projecting ends are commonly referred toas ears, and are usually provided with holes or notches into which theconnecting wire is fastened by soldering.
_Western Electric.
What to read after Cyclopedia of Telephony Telegraphy Vol 1 8 7?
You can find similar books in the "Read Also" column, or choose other free books by Charles Thom to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It is obvious that an up-and-down motion of the hook leverwill move the long spring _9_ in such manner as to cause electricalcontact either between it and the two upper springs _7_ and _8_, orbetween it and the two lower springs _10_ and _11_. The hook is shownin its raised position, which is the position required for talking. When lowered the two springs _7_ and _8_ are disengaged from the longspring _9_ and from each other, and the three springs _9_, _10_, and_11_ are brought into electrical ...engagement, thus establishing thenecessary signaling conditions.
[Illustration: Fig. 83. Long Lever Hook Switch] The right-hand ends of the contact springs are shown projecting beyondthe insulating supports. This is for the purpose of facilitatingmaking electrical joints between these springs and the various wireswhich lead from them. These projecting ends are commonly referred toas ears, and are usually provided with holes or notches into which theconnecting wire is fastened by soldering.
_Western Electric.
What to read after Cyclopedia of Telephony Telegraphy Vol 1 8 7?
You can find similar books in the "Read Also" column, or choose other free books by Charles Thom to read onlineMoreLess
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