• Year
  • 1941
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 287437

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: Universal Test Speaker and Output Meter USO - University / University Graham
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 12 x 15 x 7 inch / 305 x 381 x 178 mm
  • Notes
  • This was a test speaker for radio servicing, incorporating an output meter.  A filter choke and power resistors are incorporated for substituting for the field coil.  The output transformer was suitable for single ended or push-pull output stages, of various impedances.

    This model was still being sold well into the post war era.

    The price shown does not include sales tax.

  • Price in first year of sale
  • 14.88 Aus£
  • Mentioned in
  • Radio & Hobbies magazine May, 1942 P2.
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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