Microvoltmeter Type 721

Dymar Electronics Ltd; Watford

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  • Year
  • 1965
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 328416

 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: Microvoltmeter Type 721 - Dymar Electronics Ltd; Watford
  • Shape
  • Miscellaneous shapes - described under notes.
  • Notes

  • Type 721 DC Microvoltmeter.

    Two ranges: 100 μV f. s. d. with 1 MΩ impedance, or 100 mV f. s. d. with 100 MΩ impedance.
    Incorporates automatic polarity indication through a phase-sensitive detector.

    The 721 DC Microvoltmeter is one of 5 plugin modules that fits into the Type 70 meter unit which incorporates a precision five-inch movement and a comprehensive power supply.

    The other plugins in the range are.

    • Type 701 Wideband millivoltmeter
    • Type 722 Kilovoltmeter
    • Type 741 AF Signal Generator
    • Type 761 Noise Factor Meter

     

  • Mentioned in
  • -- Original-techn. papers. (Electronic Engineering, volume 37 year 1965)
  • Literature/Schematics (1)
  • -- Original prospect or advert (Wireless World March 1965, Page 149.)
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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