Potentiometer D-72-A

Muirhead & Co. Ltd.; Beckenham

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  • Year
  • 1949 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 353702

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Dry Batteries
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Potentiometer D-72-A - Muirhead & Co. Ltd.; Beckenham
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes

  • Potentiometer Type D-72-A

    For all measurements based on potential difference.

    Measures from -0.01 Volts to +1.92 Volts on three ranges of x1, x0.1 and x0.01.
    Smallest subdivision x0.01 range, 10 microVolts.
    Small negative reading ensures an absolute zero volts position.
    Accurate current control by stud rheostat and slide wire.
    Separate standard cell balancing circuit.
    Terminals for two external circuits selected by switch.

    Accessories for use with this instrument:
    Volt ratio box                   Type A-202-A
    Weston standard cells     Type D-113-A
    Galvanometer                  Type D-41-A
    Lam. Stand.                     Type D-74-A
     

  • Mentioned in
  • -- Original prospect or advert (Electronic Engineering, January 1949 page 9.)
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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