• Country
• United States of America (USA)

• Manufacturer / Brand
• Simpson Electric Co.; Chicago, IL - Lac du Flambeau, WI

• Year
• 1939 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 343926

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

• Wave bands
• - without

• Power type and voltage
• Dry Batteries / 3 x 1.5 & 1 x 1.5 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Volt-Ohm-Milliammeter 235 - Simpson Electric Co.; Chicago,

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 2.875 x 5.25 x 1.75 inch / 73 x 133 x 44 mm

• Notes

• The Simpson 235 VOM has the following features:

  • DC Voltage/Current and Ohms.
  • Sensitivity: 5000 ohms per DC volt.
  • Ranges:
    • DC Volts: 0-10-50-250-500-1000 V.
    • DC Current: 10-100-500 milliamps; 0-250 microamps.
    • Ohms: 0-2000-200k-2M Ohms.
  • Price listed includes test leads.

• Price in first year of sale
• 9.75 USD

• Mentioned in
• Radio Today (and Television) (Sept. 1939, page 54.)

• Literature/Schematics (1)
• Lafayette Radio Catalog (1940 No. 78, page 91.)

• Literature/Schematics (2)
• Electronics (Nov. 1947, page 282.)

• Author
• Model page created by Jerry Elarton. See "Data change" for further contributors.

• Other Models

• Here you find 148 models, 131 with images and 60 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Simpson Electric Co.; Chicago, IL - Lac du Flambeau, WI