• Country
• United States of America (USA)

• Manufacturer / Brand
• Ballantine Laboratories Inc.; Boonton, New Jersey

• Year
• 1970 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 97111

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 115 Volt

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Voltmeter AN/USM-413 - Ballantine Laboratories Inc.;

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 152 x 202 x 118 mm / 6 x 8 x 4.6 inch

• Notes
• RMS-Voltmeter 0,5 mV-500 V in 6 Bereichen. Eingangs-Impedanz 10 MOhm/25 pF, Triaxial-Eingang. 10 Hz-1 MHz. Fest eingebaute NiCad-Akkus.

• Net weight (2.2 lb = 1 kg)
• 4.3 kg / 9 lb 7.5 oz (9.471 lb)

• Price in first year of sale
• 995.00 $

• Source of data
• - - Data from my own collection

• Author
• Model page created by Otto Frosinn. See "Data change" for further contributors.

• Other Models

• Here you find 17 models, 12 with images and 12 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ballantine Laboratories Inc.; Boonton, New Jersey