Random Noise Generator 1390-B

General Radio Company; Cambridge (MA)

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  • Year
  • 1963 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 113780
    • alternative name: GenRad

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 115; 230 Volt
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Random Noise Generator 1390-B - General Radio Company;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 324 x 191 x 248 mm / 12.8 x 7.5 x 9.8 inch
  • Notes

  • The General Radio Random Noise Generator 1390-B provides high levels of electrical noise over three selectable ranges, 20 kHz, 500 kHz and 5 MHz. The generator uses as noise source a gas tube, type 6D4, operating in a transverse magnetic field.

    The circuit also uses a 3-4 current regulator tube, and a 115NO30T relay tube.

  • Net weight (2.2 lb = 1 kg)
  • 5.4 kg / 11 lb 14.3 oz (11.894 lb)
  • Mentioned in
  • -- Original-techn. papers.
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Operating Instructions Type 1390-B Random-Noise Generator, 1390-0100K, Nov. 1965.)
  • Author
  • Model page created by Emilio Ciardiello. See "Data change" for further contributors.

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