Products/Services for Telephone Ring Voltage Transformers

  • Voltage and Potential Transformers-Image
    Voltage and Potential Transformers - (67 companies)
    Voltage and potential transformers are used to measure voltage (potential). The secondary voltage is substantially proportional to the primary voltage and differs from it in phase by an angle that is approximately zero. Voltage and potential...
    Type / Applications
    Meets ANSI C12 Standards
    Meets IEC 1036 Standards
  • Telephones and Cellular Phones-Image
    Telephones and Cellular Phones - (488 companies)
    ...model. frequency modes. memory. weight. dimensions. battery type. battery life. operating system (OS). air time. talk time. phone book capacity. display type. Some cell phones provide email, games, music, and polyphonic ring tones. Mobile telephones...
  •  
    Transformers - (1900 companies)
    Transformers are electrical devices that are designed to transfer energy from one circuit to another by electromagnetic induction. They are used typically to increase or decrease voltage as it passes from one side of the device through the other...
  •  
    Electronic Transformers - (29 companies)
    ...impedance. They are also used to modify or maintain frequency response and wave shape at varying potentials. Because electronic equipment uses electron tubes, electronic transformers must provide appropriate bias voltage values for proper operation...
  •  
    Constant Voltage Transformers (CVTs) - (24 companies)
    Constant voltage transformers (CVTs) or ferroresonant transformers produce a constant secondary (output) voltage for varying primary (input) voltages within a certain range. Constant voltage transformers (CVTs), or ferroresonant transformers...
  •  
    Power Transformers - (928 companies)
    Power transformers convert power-level voltages from one level or phase configuration to another. They can include features for electrical isolation, power distribution, and control and instrumentation applications. Power transformers convert...
  •  
    Slip Rings - (109 companies)
    ...radio, etc. Specifications. Important performance specifications to consider when selecting slip rings include operating speed, number of circuits, number of signal or voltage circuits, maximum voltage for the signal circuits, maximum current...
  •  
    Telephone Components and Accessories - (399 companies)
    Telephone components and telephone accessories are used in telephone systems. There are many different types available when considering a telephone component or phone accessory. Types. Examples of telephone accessories include cell phone components...
  •  
    O-rings - (724 companies)
    O-rings are solid-rubber seals that are shaped like a doughnut. When pressed between two mating surfaces, O-rings block the passage of liquids or gases. O-rings are solid-rubber seals that are shaped like a doughnut. When pressed between two mating...
  •  
    RF Transformers - (129 companies)
    RF transformers transfer energy from one circuit to another by electromagnetic induction. Typically, they are used to increase or decrease voltage as it passes from one side through the other. RF transformers are devices designed to transfer energy...

Product News

More Information

Lock Indicates content that may require registration and/or purchase. Powered by IHS Goldfire

  • A 60-cm multi-channel system employing pulse-phase modulation
    … wherever connection is to be made to a two-wire line; (k) a ringing system to handle line- telephone ringing signals, whose frequencies are … … passed by audio-frequency transformers and hybrid coils of … … a 17-c/s ringing voltage to the outgoing line …
  • Subject Index
    … 3217 phototransistor, tensperature-stabilized, 1109 representation by biiaipy-decision programs, 3215 ring -type,forhigh-speed multiplexing, 3218 using saturable transformers , 1471 using semiconductors, current … … various types, 723 with voltage -controlled delay, 2865transistor, nodal … … for data transmission over telephone lines, 1684 f.m …