• Country
• United States of America (USA)

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

• Year
• 1973 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 290560

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

• Wave bands
• - without

• Power type and voltage
• Dry Batteries / 1.5 and 9 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Volt-Ohm-Milliammeter 260 Series 6 - Simpson Electric Co.; Chicago,

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

• Dimensions (WHD)
• 5.25 x 7 x 3.125 inch / 133 x 178 x 79 mm

• Notes

• Model without overload protection. Seperate fuse/battery cover. -DC/+DC/AC switch. Output connector. Taut Band Suspension. "Adapter lock" for use with "Add-A-Tester" accessories. Rated circuit-to-ground 1000V AC/DC max.

  Two batteries: 1x Type "D" cell, 1x 9-Volt block.

  Measuring ranges

  DC Volt: Ranges 250mV, 1V, 2.5V, 10V, 25V, 50V, 250V, 1000V; Accuracy 2% of full scale; Sensitivity 20K ohms per volt
  AC Volt: Ranges 2.5V, 10V, 50V, 250V, 500V, 1000V; Accuracy 3% of full scale; Sensitivity 5K ohms per volt
  dB: 5 Ranges -20 - +50dB; Reference 0dB=1mW into 600 ohms
  DC Ampere: Ranges 50µA, 1mA, 10 mA, 100mA, 500mA, 10A; Accuracy 1.5% of full scale; Voltage drop (nominal)  250mV on 50µA, 1mA: 255mV on 10mA, 10A: 300mV on 100mA,  and 500mV on 500mA.
  Resistance: Ranges Rx 1, Rx 100, Rx 10K; Accuracy 2.5° of arc (Rx1), 2.0° of arc on other

• Net weight (2.2 lb = 1 kg)
• 3 lb (3 lb 0 oz) / 1.362 kg

• Author
• Model page created by David Erali. See "Data change" for further contributors.

• Other Models

• Here you find 147 models, 130 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