• Country
• United States of America (USA)

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

• Year
• 1970 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 200288

• Number of Tubes
• 2

• Valves / Tubes
• 6AL5 12AU7

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Vacuum Tube Volt-Ohmmeter 312 - Simpson Electric Co.; Chicago,

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 210 x 221 x 120 mm / 8.3 x 8.7 x 4.7 inch

• Notes
• VTVM with relativly large scale (190 mm). 8 ranges for DC (0,5 V - 1500 V), megaohm impedance, 7 ranges on AC rms (1,5V-1500V) and 7 ranges AC peak to peak (4 V - 4000 Vpp).7 ranges as Ohmmeter Rx1-Rx1M (0-1000 Ohm to 0-1000 Mohm). Better than 3% accuracy on all ranges. Meter movement suspended on band. High voltage (30 kV) and RF (250 MHz) probes available as aditional equipment.

• Net weight (2.2 lb = 1 kg)
• 2.310 kg / 5 lb 1.4 oz (5.088 lb)

• Source of data
• -- Original-techn. papers.

• Literature/Schematics (1)
• - - Manufacturers Literature

• Author
• Model page created by Sinisa Trlin. 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