• Year
  • 1966
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 186946

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: DC Millivoltmeter 387 - Simpson Electric Co.; Chicago,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 3 x 5.75 x 2.75 inch / 76 x 146 x 70 mm
  • Notes
  • The Simpson D.C. Millivoltmeter Model 387 features ranges of 10, 30, 100, 300, and 1,000 millivolts with a full scale deflection current drain of 750 microamperes. The unit’s accuracy is 3% of full scale over an ambient temperature range of 50º to 120º Fahrenheit. At extreme temperatures from -55º to 185º Fahrenheit, an additional error of no more than 2% of full-scale deflection may be expected. Easy range selection is provided by the use of large binding posts on an engraved-filled panel.

    For servicing gas-fired equipment, checks safety thermocouples.

  • Price in first year of sale
  • 29.95 $
  • Mentioned in
  • - - Manufacturers Literature (Simpson Publication 12-66UMO - S.E.Co. Rev. 1.)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Simpson Test Equipment bulletin no. 2058, 1957)
  • Author
  • Model page created by Mark Wm. Manis. See "Data change" for further contributors.

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