Oscilloscope OBL-3

MILITARY U.S. (different makers for same model)

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  • Year
  • 1944 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 351868

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 60 Hz, 115 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Oscilloscope OBL-3 - MILITARY U.S. different makers
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Dimensions (WHD)
  • 7.5 x 11.125 x 14.5 inch / 191 x 283 x 368 mm
  • Notes

  • Standard Oscilloscope manufactured for the US Navy.

    External or internal synchronism.
    Sweep frequency: 7-50, 50-350, 300-2,000 Hz; 2-10, 10-60 kHz.

    There were four commercial suppliers for the USN OBL Oscilloscope family. They were:

    USN Model Manufacturer Model USN Contract
    OBL Hickok Electrical Instr. Co., Cleveland, Ohio  

    NXsr-49743, 28 Nov. 1944
    OBL-1 Allen B. DuMont Labs, Inc., Passaic, NJ 245

    NXsr-33622, 11 May 1943
    OBL-2 Reiner Electronics Co., New York City, NY  

    NXsr-41057, 22 Nov. 1944
    OBL-3 Triumph Mfg. Co., Chicago, Illinois 841

    NXsr-48370, 29 Jan.1944

     

  • Net weight (2.2 lb = 1 kg)
  • 23 lb (23 lb 0 oz) / 10.442 kg
  • Literature/Schematics (1)
  • Directory of Electronics Test Equipment, NAVSHIPS 94200.4, US Navy, Great Lakes, Illinois, June 1963
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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