Telephone circuit diagram Stock Photos and Images
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Telephone circuit diagram Stock Photos and Images
'Telephone circuit diagram for the Office of the Chief Signal Officer of the AEF, 5th Army Corps, France. The diagram was taken by the Signal Corps and received on 2-19-1921. It showcases the circuit layout and various locations such as Chéppy and Recourt for testing and communication purposes.' Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/telephone-circuit-diagram-for-the-office-of-the-chief-signal-officer-of-the-aef-5th-army-corps-france-the-diagram-was-taken-by-the-signal-corps-and-received-on-2-19-1921-it-showcases-the-circuit-layout-and-various-locations-such-as-chppy-and-recourt-for-testing-and-communication-purposes-image558516643.htmlRM2RCJHJY–'Telephone circuit diagram for the Office of the Chief Signal Officer of the AEF, 5th Army Corps, France. The diagram was taken by the Signal Corps and received on 2-19-1921. It showcases the circuit layout and various locations such as Chéppy and Recourt for testing and communication purposes.'
mobile phone with icons. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-mobile-phone-with-icons-169466582.htmlRFKRKT9X–mobile phone with icons.
colourised bw photo of telephone engineer in a crossbar teleohone exchange looking at a large circuit diagram during a late night emergency call out in 1980. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/colourised-bw-photo-of-telephone-engineer-in-a-crossbar-teleohone-exchange-looking-at-a-large-circuit-diagram-during-a-late-night-emergency-call-out-in-1980-image573923506.htmlRM2T9MD82–colourised bw photo of telephone engineer in a crossbar teleohone exchange looking at a large circuit diagram during a late night emergency call out in 1980.
Common battery wall telephone, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/common-battery-wall-telephone-illustration-from-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-image575999347.htmlRF2TD3117–Common battery wall telephone, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918.
COMMON BATTERY DESK TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/common-battery-desk-telephone-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662819.htmlRF2JG6N7F–COMMON BATTERY DESK TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
Vintage diagram of a Post Office Circuit (Simplified) for Coin-Box Lines. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/vintage-diagram-of-a-post-office-circuit-simplified-for-coin-box-lines-image474088646.htmlRF2JF8GWA–Vintage diagram of a Post Office Circuit (Simplified) for Coin-Box Lines.
Circuit layout chart depicting the long distance telephone and telegraph lines in the area of the 3rd U.S. Army, both civil and military systems, in Germany. This chart was created by the Office of the Chief Signal Officer of the 3rd U.S. Army. October 1919. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/circuit-layout-chart-depicting-the-long-distance-telephone-and-telegraph-lines-in-the-area-of-the-3rd-us-army-both-civil-and-military-systems-in-germany-this-chart-was-created-by-the-office-of-the-chief-signal-officer-of-the-3rd-us-army-october-1919-image558553001.htmlRM2RCM81D–Circuit layout chart depicting the long distance telephone and telegraph lines in the area of the 3rd U.S. Army, both civil and military systems, in Germany. This chart was created by the Office of the Chief Signal Officer of the 3rd U.S. Army. October 1919.
The Blake transmitter was the first successful telephone microphone, vintage line drawing or engraving illustration. Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-blake-transmitter-was-the-first-successful-telephone-microphone-vintage-line-drawing-or-engraving-illustration-image359323510.htmlRF2BTGGPE–The Blake transmitter was the first successful telephone microphone, vintage line drawing or engraving illustration.
mail, telephone, circut apppliance for usage of a microphone, circuit diagram, wood engraving, Germany, circa 1895, Artist's Copyright has not to be cleared Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/mail-telephone-circut-apppliance-for-usage-of-a-microphone-circuit-diagram-wood-engraving-germany-circa-1895-artists-copyright-has-not-to-be-cleared-image241573448.htmlRMT10HB4–mail, telephone, circut apppliance for usage of a microphone, circuit diagram, wood engraving, Germany, circa 1895, Artist's Copyright has not to be cleared
Phone connected to a circuit network illustration design over white Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/phone-connected-to-a-circuit-network-illustration-design-over-white-image366858645.htmlRF2C8RRXD–Phone connected to a circuit network illustration design over white
mail, telephone, telephone exchange, multiple switching system, diagram, wood engraving, Germany, circa 1890, Artist's Copyright has not to be cleared Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/mail-telephone-telephone-exchange-multiple-switching-system-diagram-wood-engraving-germany-circa-1890-artists-copyright-has-not-to-be-cleared-image241573466.htmlRMT10HBP–mail, telephone, telephone exchange, multiple switching system, diagram, wood engraving, Germany, circa 1890, Artist's Copyright has not to be cleared
sim card, computer graphic Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/sim-card-computer-graphic-image255386374.htmlRMTRDRWX–sim card, computer graphic
An engineer studying a large circuit diagram of equipment in a Crossbar telephone exchange late at night on an emergency callout in 1980. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-engineer-studying-a-large-circuit-diagram-of-equipment-in-a-crossbar-telephone-exchange-late-at-night-on-an-emergency-callout-in-1980-image228899395.htmlRMR8B7EB–An engineer studying a large circuit diagram of equipment in a Crossbar telephone exchange late at night on an emergency callout in 1980.
MOSCOW, RUSSIA - MAY 14, 2022: Postage stamp printed in Switzerland shows Map of Switzerland with circuit elements, Automatisation Telephone Network s Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/moscow-russia-may-14-2022-postage-stamp-printed-in-switzerland-shows-map-of-switzerland-with-circuit-elements-automatisation-telephone-network-s-image470119860.htmlRF2J8RPK0–MOSCOW, RUSSIA - MAY 14, 2022: Postage stamp printed in Switzerland shows Map of Switzerland with circuit elements, Automatisation Telephone Network s
Blue smart home assistant connections between domestic appliances diagram. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/blue-smart-home-assistant-connections-between-domestic-appliances-diagram-image568503107.htmlRF2T0WFEB–Blue smart home assistant connections between domestic appliances diagram.
. American telephone practice . bridge is formed by themacross the now completed circuit. The condition with respect to the talking circuit is now that shownin the lower schematic diagram of Fig. 513, and it only remains toaccomplish the ringing of the called subscribers bell. To do thisthe calling subscriber presses his ringing button which, as beforestated, grounds the vertical side of the line at his sub-station, andthus energizes the vertical relay, V2 R, at the connector in the usualmanner. When the connector side switch moved into its thirdposition, the coil of the ringing relay was brou Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/american-telephone-practice-bridge-is-formed-by-themacross-the-now-completed-circuit-the-condition-with-respect-to-the-talking-circuit-is-now-that-shownin-the-lower-schematic-diagram-of-fig-513-and-it-only-remains-toaccomplish-the-ringing-of-the-called-subscribers-bell-to-do-thisthe-calling-subscriber-presses-his-ringing-button-which-as-beforestated-grounds-the-vertical-side-of-the-line-at-his-sub-station-andthus-energizes-the-vertical-relay-v2-r-at-the-connector-in-the-usualmanner-when-the-connector-side-switch-moved-into-its-thirdposition-the-coil-of-the-ringing-relay-was-brou-image376117993.htmlRM2CRWJ9D–. American telephone practice . bridge is formed by themacross the now completed circuit. The condition with respect to the talking circuit is now that shownin the lower schematic diagram of Fig. 513, and it only remains toaccomplish the ringing of the called subscribers bell. To do thisthe calling subscriber presses his ringing button which, as beforestated, grounds the vertical side of the line at his sub-station, andthus energizes the vertical relay, V2 R, at the connector in the usualmanner. When the connector side switch moved into its thirdposition, the coil of the ringing relay was brou
hardware Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-hardware-143824512.htmlRFJ9YNHM–hardware
Glass Button Icon Set in Heart Form . Vector Illustration. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/glass-button-icon-set-in-heart-form-vector-illustration-image68800487.htmlRFDYX3M7–Glass Button Icon Set in Heart Form . Vector Illustration.
Digital composite of Overhead of hand with phone and tea and white lock graphic and flare Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-digital-composite-of-overhead-of-hand-with-phone-and-tea-and-white-138746582.htmlRFJ1MCK2–Digital composite of Overhead of hand with phone and tea and white lock graphic and flare
mobile phone with icons. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-mobile-phone-with-icons-169466559.htmlRFKRKT93–mobile phone with icons.
Common battery desk telephone, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/common-battery-desk-telephone-illustration-from-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-image575999327.htmlRF2TD310F–Common battery desk telephone, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918.
COMMON BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/common-battery-wall-telephone-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662822.htmlRF2JG6N7J–COMMON BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
Vintage diagram of Telephony Circuit. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/vintage-diagram-of-telephony-circuit-image474088649.htmlRF2JF8GWD–Vintage diagram of Telephony Circuit.
smart card for cell phones Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/smart-card-for-cell-phones-image255386358.htmlRMTRDRWA–smart card for cell phones
Blue smart home assistant connections between domestic appliances diagram. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/blue-smart-home-assistant-connections-between-domestic-appliances-diagram-image568503113.htmlRF2T0WFEH–Blue smart home assistant connections between domestic appliances diagram.
![. Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity . ntacts on the wires,the open-circuit oscillator may be tuned to the closed-circuit systemso that ])oth have exactly the same period. By referring to the diagram the arrangement will becomeclear. In this drawing the transmitter and receiver are combinedas they are in practice, since the same serial and earth wires servefor sending and indicating the waves. The aerial wire 1 is sup-plied with energy from the induct Stock Photo](https://c8.alamy.com/comp/2CNCNCT/cyclopedia-of-applied-electricity-a-practical-guide-for-electricians-mechanics-engineers-students-telegraph-and-telephone-operators-and-all-others-interested-in-electricity-ntacts-on-the-wiresthe-open-circuit-oscillator-may-be-tuned-to-the-closed-circuit-systemso-that-oth-have-exactly-the-same-period-by-referring-to-the-diagram-the-arrangement-will-becomeclear-in-this-drawing-the-transmitter-and-receiver-are-combinedas-they-are-in-practice-since-the-same-serial-and-earth-wires-servefor-sending-and-indicating-the-waves-the-aerial-wire-1-is-sup-plied-with-energy-from-the-induct-2CNCNCT.jpg ". Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity . ntacts on the wires,the open-circuit oscillator may be tuned to the closed-circuit systemso that ])oth have exactly the same period. By referring to the diagram the arrangement will becomeclear. In this drawing the transmitter and receiver are combinedas they are in practice, since the same serial and earth wires servefor sending and indicating the waves. The aerial wire 1 is sup-plied with energy from the induct Stock Photo")
. Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity . ntacts on the wires,the open-circuit oscillator may be tuned to the closed-circuit systemso that ])oth have exactly the same period. By referring to the diagram the arrangement will becomeclear. In this drawing the transmitter and receiver are combinedas they are in practice, since the same serial and earth wires servefor sending and indicating the waves. The aerial wire 1 is sup-plied with energy from the induct Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cyclopedia-of-applied-electricity-a-practical-guide-for-electricians-mechanics-engineers-students-telegraph-and-telephone-operators-and-all-others-interested-in-electricity-ntacts-on-the-wiresthe-open-circuit-oscillator-may-be-tuned-to-the-closed-circuit-systemso-that-oth-have-exactly-the-same-period-by-referring-to-the-diagram-the-arrangement-will-becomeclear-in-this-drawing-the-transmitter-and-receiver-are-combinedas-they-are-in-practice-since-the-same-serial-and-earth-wires-servefor-sending-and-indicating-the-waves-the-aerial-wire-1-is-sup-plied-with-energy-from-the-induct-image374605752.htmlRM2CNCNCT–. Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity . ntacts on the wires,the open-circuit oscillator may be tuned to the closed-circuit systemso that ])oth have exactly the same period. By referring to the diagram the arrangement will becomeclear. In this drawing the transmitter and receiver are combinedas they are in practice, since the same serial and earth wires servefor sending and indicating the waves. The aerial wire 1 is sup-plied with energy from the induct
Glass Button Icon Set Lamp Idea Concept . Vector Illustration. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/glass-button-icon-set-lamp-idea-concept-vector-illustration-image68800496.htmlRFDYX3MG–Glass Button Icon Set Lamp Idea Concept . Vector Illustration.
Sumter common battery wall telephone circuits, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/sumter-common-battery-wall-telephone-circuits-illustration-from-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-image575999322.htmlRF2TD310A–Sumter common battery wall telephone circuits, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918.
CIRCUIT DIAGRAM, TYPE C, RECEIVING SET from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/circuit-diagram-type-c-receiving-set-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662880.htmlRF2JG6N9M–CIRCUIT DIAGRAM, TYPE C, RECEIVING SET from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
customary smart card for cell phones Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/customary-smart-card-for-cell-phones-image255386364.htmlRMTRDRWG–customary smart card for cell phones
. The Bell System technical journal . lance to be obtained between theline impedances of the different sections and the corresponding bal-ancing network impedances, and the proper transmission leeis, aswell as the limited chf)icc of points where it would be practicableto maintain these stations from an economy and maintenance forcestandpoint. Fig. 3 shows the layout of through circuits on the south-ern transcontinental line and a transmission level diagram of theChicago-Los Angeles telephone circuit, indicating the location andspacing of repeater points, attenuation losses in the different se Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-bell-system-technical-journal-lance-to-be-obtained-between-theline-impedances-of-the-different-sections-and-the-corresponding-bal-ancing-network-impedances-and-the-proper-transmission-leeis-aswell-as-the-limited-chficc-of-points-where-it-would-be-practicableto-maintain-these-stations-from-an-economy-and-maintenance-forcestandpoint-fig-3-shows-the-layout-of-through-circuits-on-the-south-ern-transcontinental-line-and-a-transmission-level-diagram-of-thechicago-los-angeles-telephone-circuit-indicating-the-location-andspacing-of-repeater-points-attenuation-losses-in-the-different-se-image374603573.htmlRM2CNCJK1–. The Bell System technical journal . lance to be obtained between theline impedances of the different sections and the corresponding bal-ancing network impedances, and the proper transmission leeis, aswell as the limited chf)icc of points where it would be practicableto maintain these stations from an economy and maintenance forcestandpoint. Fig. 3 shows the layout of through circuits on the south-ern transcontinental line and a transmission level diagram of theChicago-Los Angeles telephone circuit, indicating the location andspacing of repeater points, attenuation losses in the different se
Glass Button Icons and Phone . Vector Illustration. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/glass-button-icons-and-phone-vector-illustration-image68800541.htmlRFDYX3P5–Glass Button Icons and Phone . Vector Illustration.
Garford local battery wall telephone circuits, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/garford-local-battery-wall-telephone-circuits-illustration-from-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-image575999349.htmlRF2TD3119–Garford local battery wall telephone circuits, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918.
CIRCUITS OF SUMTER COMMON BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/circuits-of-sumter-common-battery-wall-telephone-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662815.htmlRF2JG6N7B–CIRCUITS OF SUMTER COMMON BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity . 7 18 Diagram of Original Marconi Transmitter and Receiver.Fig. 28. and register may be in series or parallel; the aerial wire 9 and theearthed terminal 10 form the resonator. Chokiucr coils 7 and 8are placed in the first internal circuit between the coherer and therelay to prevent oscillations from the resonator from wasting theirenergy in the relay coils, as well as to prevent those originating atthe contacts of Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/cyclopedia-of-applied-electricity-a-practical-guide-for-electricians-mechanics-engineers-students-telegraph-and-telephone-operators-and-all-others-interested-in-electricity-7-18-diagram-of-original-marconi-transmitter-and-receiverfig-28-and-register-may-be-in-series-or-parallel-the-aerial-wire-9-and-theearthed-terminal-10-form-the-resonator-chokiucr-coils-7-and-8are-placed-in-the-first-internal-circuit-between-the-coherer-and-therelay-to-prevent-oscillations-from-the-resonator-from-wasting-theirenergy-in-the-relay-coils-as-well-as-to-prevent-those-originating-atthe-contacts-of-image374605822.htmlRM2CNCNFA–. Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity . 7 18 Diagram of Original Marconi Transmitter and Receiver.Fig. 28. and register may be in series or parallel; the aerial wire 9 and theearthed terminal 10 form the resonator. Chokiucr coils 7 and 8are placed in the first internal circuit between the coherer and therelay to prevent oscillations from the resonator from wasting theirenergy in the relay coils, as well as to prevent those originating atthe contacts of
Glass Button Icon Set in Arrow Shape . Vector Illustration. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/glass-button-icon-set-in-arrow-shape-vector-illustration-image68800535.htmlRFDYX3NY–Glass Button Icon Set in Arrow Shape . Vector Illustration.
Circuits of Western Electric Co. wall telephone, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/circuits-of-western-electric-co-wall-telephone-illustration-from-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-image575999343.htmlRF2TD3113–Circuits of Western Electric Co. wall telephone, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918.
EXPLANATION OF SYMBOLS USED IN CIRCUIT DIAGRAMS from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/explanation-of-symbols-used-in-circuit-diagrams-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662827.htmlRF2JG6N7R–EXPLANATION OF SYMBOLS USED IN CIRCUIT DIAGRAMS from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. The practical telephone handbook and guide to the telephonic exchange . ,,,,,^-J^ Fig. 452.—Explanatory Diagram of Two-Way Junction Circuit{Reproduced from Electrical Engineering oy permission of the Proprietors) fitted on a radial arm which can be swung round so as toaccommodate to the different heights of the persons using it.C.B. Combination Table and Hand-Micro-Telepkone Set.—Thedifficulty which has prevented the use of the generally favouritehand-micro-telephone set in connection with C.B. systems hasbeen that it did not allow of all persons using the instrument tospeak close into the m Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-practical-telephone-handbook-and-guide-to-the-telephonic-exchange-j-fig-452explanatory-diagram-of-two-way-junction-circuitreproduced-from-electrical-engineering-oy-permission-of-the-proprietors-fitted-on-a-radial-arm-which-can-be-swung-round-so-as-toaccommodate-to-the-different-heights-of-the-persons-using-itcb-combination-table-and-hand-micro-telepkone-setthedifficulty-which-has-prevented-the-use-of-the-generally-favouritehand-micro-telephone-set-in-connection-with-cb-systems-hasbeen-that-it-did-not-allow-of-all-persons-using-the-instrument-tospeak-close-into-the-m-image376131858.htmlRM2CRX80J–. The practical telephone handbook and guide to the telephonic exchange . ,,,,,^-J^ Fig. 452.—Explanatory Diagram of Two-Way Junction Circuit{Reproduced from Electrical Engineering oy permission of the Proprietors) fitted on a radial arm which can be swung round so as toaccommodate to the different heights of the persons using it.C.B. Combination Table and Hand-Micro-Telepkone Set.—Thedifficulty which has prevented the use of the generally favouritehand-micro-telephone set in connection with C.B. systems hasbeen that it did not allow of all persons using the instrument tospeak close into the m
Glass Button Icon Set in Arrow Shape . Vector Illustration. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/glass-button-icon-set-in-arrow-shape-vector-illustration-image68800486.htmlRFDYX3M6–Glass Button Icon Set in Arrow Shape . Vector Illustration.
North Electric Co. common wall telephone circuits, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/north-electric-co-common-wall-telephone-circuits-illustration-from-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-image575999326.htmlRF2TD310E–North Electric Co. common wall telephone circuits, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918.
EXPLANATION OF SYMBOLS USED IN CIRCUIT DIAGRAMS from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/explanation-of-symbols-used-in-circuit-diagrams-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662829.htmlRF2JG6N7W–EXPLANATION OF SYMBOLS USED IN CIRCUIT DIAGRAMS from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. The Bell System technical journal . l of the wire-to-radiorepeater will be described from the schematic circuit diagram ofFig. 2, which shows, in the dotted blocks, one channel of the trans-mitting station, a ship station, and one receiving set. At the trans-mitter station the master oscillator, very carefully shielded to main- EXTENSION OF THE TELEPHONE SYSTEM TO SHIPS 149 tain constant frequency, operates into a two-stage amplifier, the laststage being fifty watt tubes, and from there into a bank of six radiofrequency power tubes, each with a rating of 250 watts plate dis-sipation. Speech Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-bell-system-technical-journal-l-of-the-wire-to-radiorepeater-will-be-described-from-the-schematic-circuit-diagram-offig-2-which-shows-in-the-dotted-blocks-one-channel-of-the-trans-mitting-station-a-ship-station-and-one-receiving-set-at-the-trans-mitter-station-the-master-oscillator-very-carefully-shielded-to-main-extension-of-the-telephone-system-to-ships-149-tain-constant-frequency-operates-into-a-two-stage-amplifier-the-laststage-being-fifty-watt-tubes-and-from-there-into-a-bank-of-six-radiofrequency-power-tubes-each-with-a-rating-of-250-watts-plate-dis-sipation-speech-image374596589.htmlRM2CNC9NH–. The Bell System technical journal . l of the wire-to-radiorepeater will be described from the schematic circuit diagram ofFig. 2, which shows, in the dotted blocks, one channel of the trans-mitting station, a ship station, and one receiving set. At the trans-mitter station the master oscillator, very carefully shielded to main- EXTENSION OF THE TELEPHONE SYSTEM TO SHIPS 149 tain constant frequency, operates into a two-stage amplifier, the laststage being fifty watt tubes, and from there into a bank of six radiofrequency power tubes, each with a rating of 250 watts plate dis-sipation. Speech
Glass Button Icon Speech Bubble . Vector Illustration. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/glass-button-icon-speech-bubble-vector-illustration-image68800493.htmlRFDYX3MD–Glass Button Icon Speech Bubble . Vector Illustration.
Wiring diagram for radio pack set, Model 1915, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/wiring-diagram-for-radio-pack-set-model-1915-illustration-from-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-image575999337.htmlRF2TD310W–Wiring diagram for radio pack set, Model 1915, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918.
Wiring Diagram, Radio Pack Set, Model 1915 from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/wiring-diagram-radio-pack-set-model-1915-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662876.htmlRF2JG6N9G–Wiring Diagram, Radio Pack Set, Model 1915 from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. Methods of making electrolysis surveys. . Fig. 3.—Diagram of a common type of two-party circuit whichcan be used for securing temporary ground connections The contact in the ground or to the rail may be made before thetest, and when using idle lines the lead to ground or rail can bepermanently connected to the telephone wire so that a workmanneed not be sent to each point w^hen making measurements, allconnections being made in the telephone central stations. Suchpermanent connections should be made whenever possible, as theywill greatly reduce the time and labor required in testing. Tem-pora Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/methods-of-making-electrolysis-surveys-fig-3diagram-of-a-common-type-of-two-party-circuit-whichcan-be-used-for-securing-temporary-ground-connections-the-contact-in-the-ground-or-to-the-rail-may-be-made-before-thetest-and-when-using-idle-lines-the-lead-to-ground-or-rail-can-bepermanently-connected-to-the-telephone-wire-so-that-a-workmanneed-not-be-sent-to-each-point-when-making-measurements-allconnections-being-made-in-the-telephone-central-stations-suchpermanent-connections-should-be-made-whenever-possible-as-theywill-greatly-reduce-the-time-and-labor-required-in-testing-tem-pora-image372538492.htmlRM2CJ2GJ4–. Methods of making electrolysis surveys. . Fig. 3.—Diagram of a common type of two-party circuit whichcan be used for securing temporary ground connections The contact in the ground or to the rail may be made before thetest, and when using idle lines the lead to ground or rail can bepermanently connected to the telephone wire so that a workmanneed not be sent to each point w^hen making measurements, allconnections being made in the telephone central stations. Suchpermanent connections should be made whenever possible, as theywill greatly reduce the time and labor required in testing. Tem-pora
Glass Button Icon Set . Vector Illustration. EPS10 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/glass-button-icon-set-vector-illustration-eps10-image68800495.htmlRFDYX3MF–Glass Button Icon Set . Vector Illustration. EPS10
Wiring diagram for field radio pack set, Model 1913, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/wiring-diagram-for-field-radio-pack-set-model-1913-illustration-from-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-image575999338.htmlRF2TD310X–Wiring diagram for field radio pack set, Model 1913, illustration. From 'Military Signal Corps manual' by James Andrew White, publication date 1918.
CIRCUITS OF GARFORD LOCAL BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/circuits-of-garford-local-battery-wall-telephone-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662788.htmlRF2JG6N6C–CIRCUITS OF GARFORD LOCAL BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. Electric railway journal . Cordless Jack Box—Circuit Diagram for Telephone Lines. New Types of Porcelain Strain Insulators senger cables, with a working load of 4000 lb. and 8000 lb.lespectively. The drop-forged eye bolt of the type PK-ihas side projections so that if two or more insulators areused in series they cannot swing more than a few degrees,thus avoiding the danger of breaking the porcelain skirtbecause of striking the cap of the adjacent insulator. The Board of Public Utility Commissioners of the Stateof New Jersey recently issued Volume I of its reports forthe period from May 1, 1 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/electric-railway-journal-cordless-jack-boxcircuit-diagram-for-telephone-lines-new-types-of-porcelain-strain-insulators-senger-cables-with-a-working-load-of-4000-lb-and-8000-lblespectively-the-drop-forged-eye-bolt-of-the-type-pk-ihas-side-projections-so-that-if-two-or-more-insulators-areused-in-series-they-cannot-swing-more-than-a-few-degreesthus-avoiding-the-danger-of-breaking-the-porcelain-skirtbecause-of-striking-the-cap-of-the-adjacent-insulator-the-board-of-public-utility-commissioners-of-the-stateof-new-jersey-recently-issued-volume-i-of-its-reports-forthe-period-from-may-1-1-image371756413.htmlRM2CGPY2N–. Electric railway journal . Cordless Jack Box—Circuit Diagram for Telephone Lines. New Types of Porcelain Strain Insulators senger cables, with a working load of 4000 lb. and 8000 lb.lespectively. The drop-forged eye bolt of the type PK-ihas side projections so that if two or more insulators areused in series they cannot swing more than a few degrees,thus avoiding the danger of breaking the porcelain skirtbecause of striking the cap of the adjacent insulator. The Board of Public Utility Commissioners of the Stateof New Jersey recently issued Volume I of its reports forthe period from May 1, 1
WIRING DIAGRAM, FIELD RADIO PACK SET. MODEL 1913 from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/wiring-diagram-field-radio-pack-set-model-1913-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662870.htmlRF2JG6N9A–WIRING DIAGRAM, FIELD RADIO PACK SET. MODEL 1913 from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. Electrical instruments and telephones of the U.S. Signal corps . ^r(^ Bahenes. 3 conductor cord Fig. 8.J.—Circuit, local battery desk set, Sumter type.LOCAL BATTERY DESK SET. In figure 85 is shown circuits of the local battery desk telephoneof the Sumter make, as furnished to the Signal Corps. The usualbridging circuit is used. The diagram shows the actual wiring as itis found in the instrument, and the various parts are shown correctlyplaced with respect to each other. 132 ELECTRICAL INSTRUMENTS U. S, SIGNAL CORPS. COMMON HATTERY TELEPHONE. Ill cer-cral it may be >aid that the parts use Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/electrical-instruments-and-telephones-of-the-us-signal-corps-r-bahenes-3-conductor-cord-fig-8jcircuit-local-battery-desk-set-sumter-typelocal-battery-desk-set-in-figure-85-is-shown-circuits-of-the-local-battery-desk-telephoneof-the-sumter-make-as-furnished-to-the-signal-corps-the-usualbridging-circuit-is-used-the-diagram-shows-the-actual-wiring-as-itis-found-in-the-instrument-and-the-various-parts-are-shown-correctlyplaced-with-respect-to-each-other-132-electrical-instruments-u-s-signal-corps-common-hattery-telephone-ill-cer-cral-it-may-be-gtaid-that-the-parts-use-image376109173.htmlRM2CRW72D–. Electrical instruments and telephones of the U.S. Signal corps . ^r(^ Bahenes. 3 conductor cord Fig. 8.J.—Circuit, local battery desk set, Sumter type.LOCAL BATTERY DESK SET. In figure 85 is shown circuits of the local battery desk telephoneof the Sumter make, as furnished to the Signal Corps. The usualbridging circuit is used. The diagram shows the actual wiring as itis found in the instrument, and the various parts are shown correctlyplaced with respect to each other. 132 ELECTRICAL INSTRUMENTS U. S, SIGNAL CORPS. COMMON HATTERY TELEPHONE. Ill cer-cral it may be >aid that the parts use
CIRCUITS OF NORTH ELECTRIC CO. COMMON BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/circuits-of-north-electric-co-common-battery-wall-telephone-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662825.htmlRF2JG6N7N–CIRCUITS OF NORTH ELECTRIC CO. COMMON BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. Practical wireless telegraphy; a complete text book for students of radio communication . x-^<^ Fig. 211—Diagram for Measuring the Natural WaveLength of an Aerial. PRACTICAL RADIO MEASUREMENTS. 191 tion coil fitted with a vibrator, S-1 a spark discharge gap of simple design con-nected in series with the aerial A-1. L is the inductance coil of the wavemeter; Cthe variable condenser; D a crystal rectifier, and P the head telephone. When the induction coil is set in opera-tion a spark discharge takes place at S-1,the aerial circuit being traversed by groupsof oscillations at a frequency dete Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/practical-wireless-telegraphy-a-complete-text-book-for-students-of-radio-communication-x-lt-fig-211diagram-for-measuring-the-natural-wavelength-of-an-aerial-practical-radio-measurements-191-tion-coil-fitted-with-a-vibrator-s-1-a-spark-discharge-gap-of-simple-design-con-nected-in-series-with-the-aerial-a-1-l-is-the-inductance-coil-of-the-wavemeter-cthe-variable-condenser-d-a-crystal-rectifier-and-p-the-head-telephone-when-the-induction-coil-is-set-in-opera-tion-a-spark-discharge-takes-place-at-s-1the-aerial-circuit-being-traversed-by-groupsof-oscillations-at-a-frequency-dete-image375983852.htmlRM2CRKF6M–. Practical wireless telegraphy; a complete text book for students of radio communication . x-^<^ Fig. 211—Diagram for Measuring the Natural WaveLength of an Aerial. PRACTICAL RADIO MEASUREMENTS. 191 tion coil fitted with a vibrator, S-1 a spark discharge gap of simple design con-nected in series with the aerial A-1. L is the inductance coil of the wavemeter; Cthe variable condenser; D a crystal rectifier, and P the head telephone. When the induction coil is set in opera-tion a spark discharge takes place at S-1,the aerial circuit being traversed by groupsof oscillations at a frequency dete
CIRCUITS OF WESTERN ELECTRIC CO. COMMON BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/circuits-of-western-electric-co-common-battery-wall-telephone-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662812.htmlRF2JG6N78–CIRCUITS OF WESTERN ELECTRIC CO. COMMON BATTERY WALL TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems . £> rQCni Ringer ^ Shunt•^Imp. Cal/.Device r 3Cond. Cord. ^P , Red I C—i! 02 W Orange Call Device Fig. 148.—Wiring diagram for a wall telephone with an extension.. Transmitter Shunt Fig. 149.—Wiring diagram of a wall telephone with an extension. Figure 147 shows the circuit of a desk telephone of the direct-currentreceiver type just as the instrument is wired. Figures 148 and 149 show two different arrangements for connecting SUBSCRIBERS STATION EQUIPMENT 153 up a wall telephone with an extension so th Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/automatic-telephony-a-comprehensive-treatise-on-automatic-and-semi-automatic-systems-gt-rqcni-ringer-shuntimp-caldevice-r-3cond-cord-p-red-i-ci!-02-w-orange-call-device-fig-148wiring-diagram-for-a-wall-telephone-with-an-extension-transmitter-shunt-fig-149wiring-diagram-of-a-wall-telephone-with-an-extension-figure-147-shows-the-circuit-of-a-desk-telephone-of-the-direct-currentreceiver-type-just-as-the-instrument-is-wired-figures-148-and-149-show-two-different-arrangements-for-connecting-subscribers-station-equipment-153-up-a-wall-telephone-with-an-extension-so-th-image376131884.htmlRM2CRX81G–. Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems . £> rQCni Ringer ^ Shunt•^Imp. Cal/.Device r 3Cond. Cord. ^P , Red I C—i! 02 W Orange Call Device Fig. 148.—Wiring diagram for a wall telephone with an extension.. Transmitter Shunt Fig. 149.—Wiring diagram of a wall telephone with an extension. Figure 147 shows the circuit of a desk telephone of the direct-currentreceiver type just as the instrument is wired. Figures 148 and 149 show two different arrangements for connecting SUBSCRIBERS STATION EQUIPMENT 153 up a wall telephone with an extension so th
CIRCUITS OF SUMTER DESK LOCAL BATTERY DESK TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/circuits-of-sumter-desk-local-battery-desk-telephone-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662799.htmlRF2JG6N6R–CIRCUITS OF SUMTER DESK LOCAL BATTERY DESK TELEPHONE from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. The practical telephone handbook and guide to the telephonic exchange . f i*ST SELECTOR Fig. 479.—Theoretical Diagram of Trunk Release grams are given which have been taken from one of a longseries of articles on the History of the Automatic Telephone by A. Bessy Smith and published in Telephony of Chicago vf*nc*l Cr r^^iffi •*• |i, . ^ xfi— i J C*lWH WHIICM j.i#3LL ,0TA1 . «OTAB -l J>tlj SX5L is l Ws> ^I . . ««TAHV Fig. 480.—First Selector with Trunk Release, Los Angeles of 13th March 1909. Fig. 479 shows the connections of acomplete circuit of the system as installed at Los Angel Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-practical-telephone-handbook-and-guide-to-the-telephonic-exchange-f-ist-selector-fig-479theoretical-diagram-of-trunk-release-grams-are-given-which-have-been-taken-from-one-of-a-longseries-of-articles-on-the-history-of-the-automatic-telephone-by-a-bessy-smith-and-published-in-telephony-of-chicago-vfncl-cr-riffi-i-xfi-i-j-clwh-whiicm-ji3ll-0ta1-otab-l-jgttlj-sx5l-is-l-wsgt-i-tahv-fig-480first-selector-with-trunk-release-los-angeles-of-13th-march-1909-fig-479-shows-the-connections-of-acomplete-circuit-of-the-system-as-installed-at-los-angel-image376130874.htmlRM2CRX6NE–. The practical telephone handbook and guide to the telephonic exchange . f i*ST SELECTOR Fig. 479.—Theoretical Diagram of Trunk Release grams are given which have been taken from one of a longseries of articles on the History of the Automatic Telephone by A. Bessy Smith and published in Telephony of Chicago vf*nc*l Cr r^^iffi •*• |i, . ^ xfi— i J C*lWH WHIICM j.i#3LL ,0TA1 . «OTAB -l J>tlj SX5L is l Ws> ^I . . ««TAHV Fig. 480.—First Selector with Trunk Release, Los Angeles of 13th March 1909. Fig. 479 shows the connections of acomplete circuit of the system as installed at Los Angel
ONNECTIONS OF WAGON SET from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/onnections-of-wagon-set-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662831.htmlRF2JG6N7Y–ONNECTIONS OF WAGON SET from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
. Electrical instruments and telephones of the U.S. Signal corps . Fig. srt.—Wall tolepliono. Sumter type. passes from L to the hook switch // through the fine-wire windingof the induction coil, through the receiver li to the line L. In figures 82 and S:^) is shown the complete instrument to which thewiring diagram above refers.60240°—11 9 130 ELECTRICAL INSTRUMENTS U. S. SIGNAL CORPS. LINE L lO OL2. Fig. S4.—Circuit, local b<ittory wall tolophnne. Doan type. ELECTRICAL INSTRUMENTS U. S. SIGNAL CORPS. 131 The wiring of the Dean local battery wall telephone, which is fur-nished by the Signal Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/electrical-instruments-and-telephones-of-the-us-signal-corps-fig-srtwall-tolepliono-sumter-type-passes-from-l-to-the-hook-switch-through-the-fine-wire-windingof-the-induction-coil-through-the-receiver-li-to-the-line-l-in-figures-82-and-s-is-shown-the-complete-instrument-to-which-thewiring-diagram-above-refers6024011-9-130-electrical-instruments-u-s-signal-corps-line-l-lo-ol2-fig-s4circuit-local-bltittory-wall-tolophnne-doan-type-electrical-instruments-u-s-signal-corps-131-the-wiring-of-the-dean-local-battery-wall-telephone-which-is-fur-nished-by-the-signal-image376109194.htmlRM2CRW736–. Electrical instruments and telephones of the U.S. Signal corps . Fig. srt.—Wall tolepliono. Sumter type. passes from L to the hook switch // through the fine-wire windingof the induction coil, through the receiver li to the line L. In figures 82 and S:^) is shown the complete instrument to which thewiring diagram above refers.60240°—11 9 130 ELECTRICAL INSTRUMENTS U. S. SIGNAL CORPS. LINE L lO OL2. Fig. S4.—Circuit, local b<ittory wall tolophnne. Doan type. ELECTRICAL INSTRUMENTS U. S. SIGNAL CORPS. 131 The wiring of the Dean local battery wall telephone, which is fur-nished by the Signal
The Generator Circuits from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-generator-circuits-from-the-military-signal-corps-manual-by-james-andrew-white-publication-date-1918-publisher-new-york-wireless-press-inc-image474662835.htmlRF2JG6N83–The Generator Circuits from the ' Military Signal Corps manual ' by James Andrew White, Publication date 1918 Publisher New York : Wireless Press, inc.
![. Bulletin. Science. ^-^-H|i|i|i|il^!i|iiiHi|i|,|iji|,iili]i|ip Uiiii!i|iii!iiiii|iii|i|iii|iHi|i|iiih Figure 48.—Western Union's first practical quadruplex circuit, 1874. From G. B. Prescott, The Speaking Telephone, New York, 1878, p. 311. ^l/Jhr Jw dUl^^tttiiW Z^-La.f^. ^ii^dcnnjitimit djiiv ccmH/inatitii. Figure 49.—Diagram of tlie Baudot multiplex system. From La Lumiere ilectrique, 1882, 'ol. 6, p. 60. mounted on a resonator. The electromagnet made instrument, the sound heard by pressing the ear against the needle vibrate according to the rate at which the the cover of the receiver was Stock Photo](https://c8.alamy.com/comp/RH03D7/bulletin-science-hiiiil!iiiihiiijiiili-iip-uiiii!iiii!iiiiiiiiiiiiihiiiiih-figure-48western-unions-first-practical-quadruplex-circuit-1874-from-g-b-prescott-the-speaking-telephone-new-york-1878-p-311-ljhr-jw-dultttiiw-z-laf-iidcnnjitimit-djiiv-ccmhinatitii-figure-49diagram-of-tlie-baudot-multiplex-system-from-la-lumiere-ilectrique-1882-ol-6-p-60-mounted-on-a-resonator-the-electromagnet-made-instrument-the-sound-heard-by-pressing-the-ear-against-the-needle-vibrate-according-to-the-rate-at-which-the-the-cover-of-the-receiver-was-RH03D7.jpg ". Bulletin. Science. ^-^-H|i|i|i|il^!i|iiiHi|i|,|iji|,iili]i|ip Uiiii!i|iii!iiiii|iii|i|iii|iHi|i|iiih Figure 48.—Western Union's first practical quadruplex circuit, 1874. From G. B. Prescott, The Speaking Telephone, New York, 1878, p. 311. ^l/Jhr Jw dUl^^tttiiW Z^-La.f^. ^ii^dcnnjitimit djiiv ccmH/inatitii. Figure 49.—Diagram of tlie Baudot multiplex system. From La Lumiere ilectrique, 1882, 'ol. 6, p. 60. mounted on a resonator. The electromagnet made instrument, the sound heard by pressing the ear against the needle vibrate according to the rate at which the the cover of the receiver was Stock Photo")
. Bulletin. Science. ^-^-H|i|i|i|il^!i|iiiHi|i|,|iji|,iili]i|ip Uiiii!i|iii!iiiii|iii|i|iii|iHi|i|iiih Figure 48.—Western Union's first practical quadruplex circuit, 1874. From G. B. Prescott, The Speaking Telephone, New York, 1878, p. 311. ^l/Jhr Jw dUl^^tttiiW Z^-La.f^. ^ii^dcnnjitimit djiiv ccmH/inatitii. Figure 49.—Diagram of tlie Baudot multiplex system. From La Lumiere ilectrique, 1882, 'ol. 6, p. 60. mounted on a resonator. The electromagnet made instrument, the sound heard by pressing the ear against the needle vibrate according to the rate at which the the cover of the receiver was Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-science-hiiiil!iiiihiiijiiili-iip-uiiii!iiii!iiiiiiiiiiiiihiiiiih-figure-48western-unions-first-practical-quadruplex-circuit-1874-from-g-b-prescott-the-speaking-telephone-new-york-1878-p-311-ljhr-jw-dultttiiw-z-laf-iidcnnjitimit-djiiv-ccmhinatitii-figure-49diagram-of-tlie-baudot-multiplex-system-from-la-lumiere-ilectrique-1882-ol-6-p-60-mounted-on-a-resonator-the-electromagnet-made-instrument-the-sound-heard-by-pressing-the-ear-against-the-needle-vibrate-according-to-the-rate-at-which-the-the-cover-of-the-receiver-was-image234186659.htmlRMRH03D7–. Bulletin. Science. ^-^-H|i|i|i|il^!i|iiiHi|i|,|iji|,iili]i|ip Uiiii!i|iii!iiiii|iii|i|iii|iHi|i|iiih Figure 48.—Western Union's first practical quadruplex circuit, 1874. From G. B. Prescott, The Speaking Telephone, New York, 1878, p. 311. ^l/Jhr Jw dUl^^tttiiW Z^-La.f^. ^ii^dcnnjitimit djiiv ccmH/inatitii. Figure 49.—Diagram of tlie Baudot multiplex system. From La Lumiere ilectrique, 1882, 'ol. 6, p. 60. mounted on a resonator. The electromagnet made instrument, the sound heard by pressing the ear against the needle vibrate according to the rate at which the the cover of the receiver was
