• Year
  • 1951 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 124609

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Storage and/or dry batteries / 135 & 6 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Power out
  • 0.005 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Frequency Meter TS-174B/U - MILITARY U.S. different makers
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 10.3 x 11.7 x 13.8 inch / 262 x 297 x 351 mm
  • Notes
  • Heterodyne frequency meter, covers from 20 to 250 MHz. Internal 1 MHz crystal calibrator. 0.04 calibration accuracy over -40 to +55 °C.
    This was the VHF version of the legendary BC-221. The VFO is 20-40 MHZ; higher frequencies are harmonics. With the head-phone HS-30 zero-beating can be heard on an incoming signal and on crystal check-points.
  • Net weight (2.2 lb = 1 kg)
  • 11.2 kg / 24 lb 10.7 oz (24.67 lb)
  • Literature/Schematics (1)
  • TM 11-5044, Technical Manual
  • Author
  • Model page created by Emilio Ciardiello. See "Data change" for further contributors.

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