Autobalance Universal Bridge B642

Wayne Kerr; New Malden, England

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  • Year
  • 1975 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 344822

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Autobalance Universal Bridge B642 - Wayne Kerr; New Malden,
  • Shape
  • Tablemodel, low profile (big size).
  • Notes

  • The Wayne Kerr B642 balances itself automatically. 

    The meters read real and quadrature terms and highly stable analog outputs are provided which are directly proportional to capacitance and conductance above 100 impedance and also to inductance and resistance below 100.

    One or two decades can be set to provide the first significant figures of the measurement, thereby increasing the meter sensitivity by 10 or 100 times.

    If a chart recorder is connected to the output of either term, drifts in component values to at least four significant figures can be observed.

    The bridge has ten-decade ranges and can be used to measure any component or complex impedance. Transformer ratio arms are used to cover a very wide range of measurements using a minimum number of standards set digitally. The three-terminal facility provided by this type of bridge enables small values of capacitance or high values of resistance to be measured at the end of long lengths of cable. Components can also be effectively isolated electrically from a complex network allowing individual measurements to be made without disconnection from the circuit being necessary.

    See the Wide Range Audio Bridge Model B224.

     

  • Mentioned in
  • -- Original prospect or advert (Electronic Engineering, volume 49 number 587, January 1977)
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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