Industrial Circuit Tester 785 Type 4

Weston Electrical Instrument Co.; Newark, N.J.; (Jewell Electrical Instrument Co.; Chicago, IL)

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  • Year
  • 1942–1950
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 161402
    • alternative name: Jewell

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Dry Batteries / D: 1 x 1.5 & (Burgess 5540) plus 2 x 7.5 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Industrial Circuit Tester 785 Type 4 - Weston Electrical Instrument
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 335 x 235 x 115 mm / 13.2 x 9.3 x 4.5 inch
  • Notes

  • Instrument fixed in a solid oak case, panel of tester made of plain bakelite. For operating it uses 2 x Burgess 7.5V battery No. 5540 plus 1 x "D" size battery 1.5V.

    Versatile tester for trouble shooting. Provides voltage, current and resistance ranges for checking motor and control circuits, lighting circuits, sensitive relay circuits, electronic circuits, etc. ( D-C sensitivity 20,000 Ohms per Volt )

    0 to 1,000 Volts DC at 20,000 Ω/Volt
    0 to 750 Volts AC at 1,000 Ω/Volt
    0 to 10 Amps DC
    0 to 10 Amps AC
    0 to 900 MΩ

    Type 4 is identical to Type 3, with the exception that the instrument of the latter features a complete metal base and can be lifted out of the wooden box.

     

     

  • Net weight (2.2 lb = 1 kg)
  • 3.5 kg / 7 lb 11.3 oz (7.709 lb)
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

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The model Industrial Circuit Tester 785 is part of the collections of the following members.

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