Download Cyclopedia of Applied Electricity Volume 6
Download Cyclopedia of Applied Electricity Volume 6
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Author: Books Group
Page Count: 136 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781236305749
Download Link: Cyclopedia of Applied Electricity Volume 6
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 Excerpt: ...station, it will he lighted. The plan Hrst adopted was to equip each subscriber telephone with a bell, the resistance of whose coils was 6,000 ohms instead of the usual 1.000. The wiring was as shown in Fig. 2H4 in which a represents the bell coils having a resistance of 0.000 ohms, h the receiver, c the transmitter, and / the hook switch. One side of the line runs through the retardation coil // to the common battery g, while the other side passes through the lamp /and the contact point 1 of the jack e. The battery// is continually on the line, and current flows constantly through the bell coils. On account of their high resistance, however, the volume of the current flow is not sufficient to illuminate the lamp. Upon the receiver being removed from the hook, the bell coils are shunted by the circuit through the hook switch, transmitter, and receiver, and the current rlow is thereby sufficiently increased to light the lamp. As far as the operator is concerned, this lamp answers the purpose of the drop, and upon seeing it light, she plugs into the jack to answer. When the plug enters the jack, the contact is broken between the upper jack spring and point 1, cutting off the portion of the circuit containing the lamp and putting it out. The talking battery is connected to the operator's cord circuits in a manner to be described later. The retardation coil // is used for preventing cross-talk. It must be remembered that the battery g is common to all lines, and while the resistance of the bell coils of one subscriber telephone is sufficiently high to prevent an appreciable amount of current from flowing, yet when several such bells are bridged to this battery, the resistance of the combined circuit is very much less, and as a result, a large leakage from the b...
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Cyclopedia of Applied Electricity Volume 6. Books Group
Author: Books Group
Page Count: 136 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781236305749
Download Link: Cyclopedia of Applied Electricity Volume 6
---------------------------------------------------------------
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 Excerpt: ...station, it will he lighted. The plan Hrst adopted was to equip each subscriber telephone with a bell, the resistance of whose coils was 6,000 ohms instead of the usual 1.000. The wiring was as shown in Fig. 2H4 in which a represents the bell coils having a resistance of 0.000 ohms, h the receiver, c the transmitter, and / the hook switch. One side of the line runs through the retardation coil // to the common battery g, while the other side passes through the lamp /and the contact point 1 of the jack e. The battery// is continually on the line, and current flows constantly through the bell coils. On account of their high resistance, however, the volume of the current flow is not sufficient to illuminate the lamp. Upon the receiver being removed from the hook, the bell coils are shunted by the circuit through the hook switch, transmitter, and receiver, and the current rlow is thereby sufficiently increased to light the lamp. As far as the operator is concerned, this lamp answers the purpose of the drop, and upon seeing it light, she plugs into the jack to answer. When the plug enters the jack, the contact is broken between the upper jack spring and point 1, cutting off the portion of the circuit containing the lamp and putting it out. The talking battery is connected to the operator's cord circuits in a manner to be described later. The retardation coil // is used for preventing cross-talk. It must be remembered that the battery g is common to all lines, and while the resistance of the bell coils of one subscriber telephone is sufficiently high to prevent an appreciable amount of current from flowing, yet when several such bells are bridged to this battery, the resistance of the combined circuit is very much less, and as a result, a large leakage from the b...
Read online Cyclopedia of Applied Electricity Volume 6 Buy and read online Cyclopedia of Applied Electricity Volume 6 Download and read Cyclopedia of Applied Electricity Volume 6 ebook, pdf, djvu, epub, mobi, fb2, zip, rar, torrent Download to iPad/iPhone/iOS, B&N nook Cyclopedia of Applied Electricity Volume 6
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