Roto Ranger AC-DC Volt-Ohm-Microammeter 221

Simpson Electric Co.; Chicago, IL - Lac du Flambeau, WI

Data
Forum
Pictures
Collections

  • Year
  • 1948
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 159884

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

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Dry Batteries / 1x 1.5 & 4x 1.5 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: Roto Ranger AC-DC Volt-Ohm-Microammeter 221 - Simpson Electric Co.; Chicago,
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 12.75 x 10.12 x 5.75 inch / 324 x 257 x 146 mm
  • Notes

  • 25 measuring ranges at 20,000 ohms per volt DC and 1,000 ohms per volt AC.

    DC Volts: 2.5, 10, 50, 300, 1000, 5000
    AC Volts: 2.5, 10, 50, 250, 1000, 5000
    DC Microamperes: 100
    DC Milliamperes: 10, 100, 500
    DC Amperes: 10
    AC output: 2.5, 10, 50, 250
    Ohms: 0 - 2K ohms (12 ohms center); 0 - 200K ohms (1200 ohms center); 0 - 20 megohms (120K ohms center).

    Batteries: one Burgess No. 2 (Eveready No. 950, Ray-o-Vac No. 2) and four Burgess No. Z (Eveready No. 915, Ray-o-Vac No. 7R) or equivalents.

    Optional high voltage probe for TV servicing (30,000 VDC, 20000 ohms per volt), 1951: $9.95
    Price in 1951, dealer's net, including test leads.
    Price including test leads, in 1953: $75

  • Net weight (2.2 lb = 1 kg)
  • 9 lb 0 oz (9 lb) / 4.086 kg
  • Price in first year of sale
  • 69.85 $
  • Mentioned in
  • - - Manufacturers Literature (Audio Engineering October 1948 - Page 6)
  • Literature/Schematics (1)
  • -- Original prospect or advert (Catalog 1951)
  • Author
  • Model page created by Meyer Rochwerger. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum