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RFW2AJY9–Colorful varistors. Circuit board detail. Electronic components for surge protector. Diode, red, blue, yellow voltage-dependent resistors on green PCB.
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RF2YKP9E5–Coffee brewing machine used by barista in café
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RFTC3NYB–Varistor, cylindrical induction coils, capacitor and relay on green circuit board. Electro background with copy space on yellow round electronic part.
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RF2YNT59D–Woman making espresso at hand
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RF2G18EAB–Electronic components on green circuit board isolated on white background. Diodes row, colored thermistors, metal oxide varistors or black connectors.
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RFJ371RP–Blue Varistor, Electric Power Surge Protector, MOV [Metal Oxide Varistor]
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RF2YNT5AM–Woman making espresso at hand
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RF2HD412P–Close up of blue varistor electronic circuit board element. Copy space.
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RF2J1XEKK–Detalle de los componentes de un circuito electrónico
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RM2BYCP6C–Power supply
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RFDB3223–Power supply
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RM2BY3PD1–Power supply
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RF2CEPMD9–components grouped for each zone with circuit protection
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RFM9RKHA–Soldering of tin of electronic componentzs on printed circuit board.
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RF2WCNCT0–Closeup of electronic coil toroid core on PCB detail. Side view a printed circuit board with electrical components as inductor, capacitor or resistor.
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RF2X5HH12–about power boards and the electronic part and related to power boards and their electronic components.
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RF2NWCYNK–Glass electric fuse or toroid coils copper wire in hovering circuit board on black background. Inductors covered white plastic fixed by silicone paste.
United States: December, 1957. E.I. Doucette, H.A. Stone, and R.M. Warner, Jr. testing their new field-effect varistor that they invented at Bell Telephone Laboratories. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/united-states-december-1957-ei-doucette-ha-stone-and-rm-warner-jr-testing-their-new-field-effect-varistor-that-they-invented-at-bell-telephone-laboratories-image556298167.html
RM2R91FYK–United States: December, 1957. E.I. Doucette, H.A. Stone, and R.M. Warner, Jr. testing their new field-effect varistor that they invented at Bell Telephone Laboratories.
1953 , ITALY : Article from italian illustrated magazine LA SCIENZA ILLUSTRATA ( The Illustrated Science ), december 1959 , dedicated to invention of TELEVISION with TRANSISTORS ( named in english : transconductance-varistor ). This portable television everywhere It quickly created a revolution in the way of using the television screen in the United States, which would arrive in Italy many years later given the very high cost of these devices . The transistor was invented by canadian enginer Julius Edgar Lilienfeld in 1925 but only in 1947-1948 created by the americans Walter Brattain , John Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/1953-italy-article-from-italian-illustrated-magazine-la-scienza-illustrata-the-illustrated-science-december-1959-dedicated-to-invention-of-television-with-transistors-named-in-english-transconductance-varistor-this-portable-television-everywhere-it-quickly-created-a-revolution-in-the-way-of-using-the-television-screen-in-the-united-states-which-would-arrive-in-italy-many-years-later-given-the-very-high-cost-of-these-devices-the-transistor-was-invented-by-canadian-enginer-julius-edgar-lilienfeld-in-1925-but-only-in-1947-1948-created-by-the-americans-walter-brattain-john-image630969521.html
RM2YJF41N–1953 , ITALY : Article from italian illustrated magazine LA SCIENZA ILLUSTRATA ( The Illustrated Science ), december 1959 , dedicated to invention of TELEVISION with TRANSISTORS ( named in english : transconductance-varistor ). This portable television everywhere It quickly created a revolution in the way of using the television screen in the United States, which would arrive in Italy many years later given the very high cost of these devices . The transistor was invented by canadian enginer Julius Edgar Lilienfeld in 1925 but only in 1947-1948 created by the americans Walter Brattain , John
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RF2DNW2B5–Close up of a fresh rosin for soldering iron melts
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RMHN4K03–Close-up view of an electronic power supply card of a household appliance.
RF2M97GWA–Diode Photosensitive Engineering Symbol, Vector symbol design. Engineering Symbols.
Closeup view of electrical inductances and capacitor Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-closeup-view-of-electrical-inductances-and-capacitor-51353961.html
RFCYFAE1–Closeup view of electrical inductances and capacitor
. The Bell System technical journal . plied dining spacing signals. When the voltage acrossthe varistor bridge is in the conducting direction, the varistors provide alow impedance path to alternating currents. Thus additional capacitanceis coupled to the oscillator tank circuit and the oscillator operates atthe lower of its two signal frequencies. When the voltage across thebridge is in the non-conducting direction, the varistors are biased to ahigh-impedance portion of their characteristic, the capacitor is effec-tively disconnected from the tank ciicuit and the oscillator operatesat its high Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-bell-system-technical-journal-plied-dining-spacing-signals-when-the-voltage-acrossthe-varistor-bridge-is-in-the-conducting-direction-the-varistors-provide-alow-impedance-path-to-alternating-currents-thus-additional-capacitanceis-coupled-to-the-oscillator-tank-circuit-and-the-oscillator-operates-atthe-lower-of-its-two-signal-frequencies-when-the-voltage-across-thebridge-is-in-the-non-conducting-direction-the-varistors-are-biased-to-ahigh-impedance-portion-of-their-characteristic-the-capacitor-is-effec-tively-disconnected-from-the-tank-ciicuit-and-the-oscillator-operatesat-its-high-image376096290.html
RM2CRTJJA–. The Bell System technical journal . plied dining spacing signals. When the voltage acrossthe varistor bridge is in the conducting direction, the varistors provide alow impedance path to alternating currents. Thus additional capacitanceis coupled to the oscillator tank circuit and the oscillator operates atthe lower of its two signal frequencies. When the voltage across thebridge is in the non-conducting direction, the varistors are biased to ahigh-impedance portion of their characteristic, the capacitor is effec-tively disconnected from the tank ciicuit and the oscillator operatesat its high
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RF2BNT46H–Microchips and electronic parts icons
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RFMFN7B2–Soldering of tin of electronic componentzs on printed circuit board.
1953 , ITALY : Cover of italian illustrated magazine LA SCIENZA ILLUSTRATA ( The Illustrated Science ), december 1959 , dedicated to invention of TELEVISION with TRANSISTORS ( named in english : transconductance-varistor ). This portable television everywhere It quickly created a revolution in the way of using the television screen in the United States, which would arrive in Italy many years later given the very high cost of these devices . The transistor was invented by canadian enginer Julius Edgar Lilienfeld in 1925 but only in 1947-1948 created by the americans Walter Brattain , John Bar Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/1953-italy-cover-of-italian-illustrated-magazine-la-scienza-illustrata-the-illustrated-science-december-1959-dedicated-to-invention-of-television-with-transistors-named-in-english-transconductance-varistor-this-portable-television-everywhere-it-quickly-created-a-revolution-in-the-way-of-using-the-television-screen-in-the-united-states-which-would-arrive-in-italy-many-years-later-given-the-very-high-cost-of-these-devices-the-transistor-was-invented-by-canadian-enginer-julius-edgar-lilienfeld-in-1925-but-only-in-1947-1948-created-by-the-americans-walter-brattain-john-bar-image630968599.html
RM2YJF2TR–1953 , ITALY : Cover of italian illustrated magazine LA SCIENZA ILLUSTRATA ( The Illustrated Science ), december 1959 , dedicated to invention of TELEVISION with TRANSISTORS ( named in english : transconductance-varistor ). This portable television everywhere It quickly created a revolution in the way of using the television screen in the United States, which would arrive in Italy many years later given the very high cost of these devices . The transistor was invented by canadian enginer Julius Edgar Lilienfeld in 1925 but only in 1947-1948 created by the americans Walter Brattain , John Bar
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RF2DNPMEW–Close up of a soldering iron melts rosin
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RMHN4KC6–Close-up view of an electronic power supply card of a household appliance.
. The Bell System technical journal . subjected to extreme variations in ambient temperature over shortperiods of operation some difiiculty in maintaining optimum focus wasexperienced. This defocussing, due to the change in coil resistance withambient temi)erature and in part to dissipation in the winding proper, isminimized in the designs shown by the introduction of a varistor element TEE RADAR RECEIVER 769 mounted in close proximity to the winding whose resistance temperaturecharacteristic was chosen to compensate for similar characteristics of thewinding proper. The beam centering structur Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-bell-system-technical-journal-subjected-to-extreme-variations-in-ambient-temperature-over-shortperiods-of-operation-some-difiiculty-in-maintaining-optimum-focus-wasexperienced-this-defocussing-due-to-the-change-in-coil-resistance-withambient-temierature-and-in-part-to-dissipation-in-the-winding-proper-isminimized-in-the-designs-shown-by-the-introduction-of-a-varistor-element-tee-radar-receiver-769-mounted-in-close-proximity-to-the-winding-whose-resistance-temperaturecharacteristic-was-chosen-to-compensate-for-similar-characteristics-of-thewinding-proper-the-beam-centering-structur-image376115440.html
RM2CRWF28–. The Bell System technical journal . subjected to extreme variations in ambient temperature over shortperiods of operation some difiiculty in maintaining optimum focus wasexperienced. This defocussing, due to the change in coil resistance withambient temi)erature and in part to dissipation in the winding proper, isminimized in the designs shown by the introduction of a varistor element TEE RADAR RECEIVER 769 mounted in close proximity to the winding whose resistance temperaturecharacteristic was chosen to compensate for similar characteristics of thewinding proper. The beam centering structur
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RF2PP36E6–Company managers line icons collection. Circuit, Capacitor, Transistor, Resistor, Diode, Inductor, Integrated vector and linear illustration. Chip
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RF2YN8R98–Café staff talking in front of the counter
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RF2Y3GE5D–varistor electronic component icon color illustration
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RF2TC9MA6–varistor electronic component line icon vector illustration
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RFMA5BNM–Soldering of tin of electronic componentzs on printed circuit board.
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RF2DNPN9D–Close up of a soldering iron melts rosin
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RMHN4K94–Close-up view of an electronic power supply card of a household appliance.
. The Bell System technical journal . -=5. ■^^.J /^. Fig. 7 — Plug-in units. Left to right, reading amplifier, match unit varistorcluster, individual varistor, match and-gate, transistor, and pulse stretcher. In wiring the rack, use of individually-shielded conductors was heldto a minimum. The cable between the drum unit and the reading ampli-fiers was composed of standard switchboard wire, shielded as a unit byremovable sheet-metal enclosures, thus greatly reducing the bulk as com-pared to the usual bundle of coaxial cables. The remainder of the wiring, which carries relatively high-level sig Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-bell-system-technical-journal-=5-j-fig-7-plug-in-units-left-to-right-reading-amplifier-match-unit-varistorcluster-individual-varistor-match-and-gate-transistor-and-pulse-stretcher-in-wiring-the-rack-use-of-individually-shielded-conductors-was-heldto-a-minimum-the-cable-between-the-drum-unit-and-the-reading-ampli-fiers-was-composed-of-standard-switchboard-wire-shielded-as-a-unit-byremovable-sheet-metal-enclosures-thus-greatly-reducing-the-bulk-as-com-pared-to-the-usual-bundle-of-coaxial-cables-the-remainder-of-the-wiring-which-carries-relatively-high-level-sig-image376104888.html
RM2CRW1HC–. The Bell System technical journal . -=5. ■^^.J /^. Fig. 7 — Plug-in units. Left to right, reading amplifier, match unit varistorcluster, individual varistor, match and-gate, transistor, and pulse stretcher. In wiring the rack, use of individually-shielded conductors was heldto a minimum. The cable between the drum unit and the reading ampli-fiers was composed of standard switchboard wire, shielded as a unit byremovable sheet-metal enclosures, thus greatly reducing the bulk as com-pared to the usual bundle of coaxial cables. The remainder of the wiring, which carries relatively high-level sig
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RF2PNMN9C–Electronic compnts industry line icons collection. Silicon, Transistor, Capacitor, Resistor, Diode, Microchip, PCB vector and linear illustration
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RF2D35T3J–Condenser capacitor icon. Cartoon of condenser capacitor vector icon for web design isolated on white background
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RFMA5BWB–Soldering of tin of electronic componentzs on printed circuit board.
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RMHN4KAT–Close-up view of an electronic power supply card of a household appliance.
. The Bell System technical journal . RECTIFIED GUARDVOLTAGE Qz^ FIG. 8 NET VOLTAGE ATDC AMPLIFIER OUTPUT SIGNAL(NO CORRECTION) Fig. J — Tj-pical wave forms in 1,600-cycle receiver. 1324 THE BELL SYSTEM TECHNICAL JOURNAL, NOVEMBER 1954. Fig. 10 — Front view of the 2,600-cycle signaling panel. The R delay, because of guard action and the fact that its secondarywinding is closed through a varistor and resistance, is relatively slow tooperate and fast to release. For this reason some foiTn of pulse correctionis necessary to get good dial operation. This is obtained with the rg(regenerate) relay a Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-bell-system-technical-journal-rectified-guardvoltage-qz-fig-8-net-voltage-atdc-amplifier-output-signalno-correction-fig-j-tj-pical-wave-forms-in-1600-cycle-receiver-1324-the-bell-system-technical-journal-november-1954-fig-10-front-view-of-the-2600-cycle-signaling-panel-the-r-delay-because-of-guard-action-and-the-fact-that-its-secondarywinding-is-closed-through-a-varistor-and-resistance-is-relatively-slow-tooperate-and-fast-to-release-for-this-reason-some-foitn-of-pulse-correctionis-necessary-to-get-good-dial-operation-this-is-obtained-with-the-rgregenerate-relay-a-image376110852.html
RM2CRW96C–. The Bell System technical journal . RECTIFIED GUARDVOLTAGE Qz^ FIG. 8 NET VOLTAGE ATDC AMPLIFIER OUTPUT SIGNAL(NO CORRECTION) Fig. J — Tj-pical wave forms in 1,600-cycle receiver. 1324 THE BELL SYSTEM TECHNICAL JOURNAL, NOVEMBER 1954. Fig. 10 — Front view of the 2,600-cycle signaling panel. The R delay, because of guard action and the fact that its secondarywinding is closed through a varistor and resistance, is relatively slow tooperate and fast to release. For this reason some foiTn of pulse correctionis necessary to get good dial operation. This is obtained with the rg(regenerate) relay a
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RF2YN8R95–20-something café worker making coffee
varistor electronic component line icon vector illustration Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/varistor-electronic-component-line-icon-vector-illustration-image621313723.html
RF2Y2R7YR–varistor electronic component line icon vector illustration
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RF2R325EC–varistor electronic component line icon vector illustration
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RF2D35WFD–Control capacitor icon. Cartoon of control capacitor vector icon for web design isolated on white background
Soldering of tin of electronic componentzs on printed circuit board. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/soldering-of-tin-of-electronic-componentzs-on-printed-circuit-board-image185835434.html
RFMP9EYP–Soldering of tin of electronic componentzs on printed circuit board.
Soldering of tin of electronic componentzs on printed circuit board. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/soldering-of-tin-of-electronic-componentzs-on-printed-circuit-board-image182330441.html
RFMGHT9D–Soldering of tin of electronic componentzs on printed circuit board.
Diode resistor icon. Cartoon of diode resistor vector icon for web design isolated on white background Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/diode-resistor-icon-cartoon-of-diode-resistor-vector-icon-for-web-design-isolated-on-white-background-image411098282.html
RF2ETR41E–Diode resistor icon. Cartoon of diode resistor vector icon for web design isolated on white background
Voltage regulator appliance icon, isometric style Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/voltage-regulator-appliance-icon-isometric-style-image381830156.html
varistor electronic component color icon vector illustration Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/varistor-electronic-component-color-icon-vector-illustration-image555953976.html
RF2R8DTY4–varistor electronic component color icon vector illustration
Soldering of tin of electronic componentzs on printed circuit board. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/soldering-of-tin-of-electronic-componentzs-on-printed-circuit-board-image178875323.html
RFMB0D8B–Soldering of tin of electronic componentzs on printed circuit board.
varistor electronic component line icon vector illustration Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/varistor-electronic-component-line-icon-vector-illustration-image555966784.html
RF2R8ED8G–varistor electronic component line icon vector illustration
Women drinking warm coffee outside Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/women-drinking-warm-coffee-outside-image630859378.html
RF2YJA3G2–Women drinking warm coffee outside
Soldering of tin of electronic componentzs on printed circuit board. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/soldering-of-tin-of-electronic-componentzs-on-printed-circuit-board-image178369283.html
RFMA5BRF–Soldering of tin of electronic componentzs on printed circuit board.
20-something café worker making coffee Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/20-something-caf-worker-making-coffee-image632674920.html
RF2YN8R8T–20-something café worker making coffee
View of the café Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/view-of-the-caf-image633291120.html
RF2YP8W80–View of the café
Hand pouring coffee Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/hand-pouring-coffee-image633291121.html
RF2YP8W81–Hand pouring coffee
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RF2YJA3GC–Two women with aluminium cups
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RF2YJA3CB–Man and woman dripping coffee at campsite
Two people drinking coffee around a bonfire Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/two-people-drinking-coffee-around-a-bonfire-image630859389.html
RF2YJA3GD–Two people drinking coffee around a bonfire
Woman in her 20s working in a café Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/woman-in-her-20s-working-in-a-caf-image633012048.html
RF2YNT594–Woman in her 20s working in a café
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RF2YNT597–Woman in her 20s working in a café
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RF2YNT596–Woman in her 20s working in a café
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RF2YNT59A–Woman in her 20s working in a café
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RF2YNT59N–Woman making espresso at hand
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RF2YNT59K–Woman making espresso
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RF2YNT595–Woman making espresso
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RF2YNT59H–Woman making espresso at hand
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RF2YNT59C–Woman making espresso
Woman in her 20s working in a café Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/woman-in-her-20s-working-in-a-caf-image633012053.html
RF2YNT599–Woman in her 20s working in a café
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RF2YNT59F–Woman making espresso
Female waiter and male customer serving customers at café Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/female-waiter-and-male-customer-serving-customers-at-caf-image633012110.html
RF2YNT5BA–Female waiter and male customer serving customers at café
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