• Country
• Sweden

• Manufacturer / Brand
• Svenska Högtalarefabriken (Sinus), HIFIac, HIFAB; Vårby, Bureå

• Year
• 1963 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 346799

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2 inch = 5.1 cm

• Material
• Metal case

• from Radiomuseum.org
• Model: Sinus Högtalarelement U-2275 - Svenska Högtalarefabriken

• Shape
• Chassis only or for «building in»

• Notes

• Magnet

  • Type – Ferrite (1967 May).
  • Magnetic induction (magnetic flux density), Gauss: 9 000 (1966 April, 1967 May).
  • Magnetic flux, Maxwell: 11 000 (1967 May).

  Voice coil

  • Maximum power, Watt: 8 (1965, 1966, 1967, 1968), 15 (1969, September), 10/16 (1972, 1973)
  • Diameter, mm: 12 (1967 May).
  • Impedance, Ohm: 4, 5, 8, 16.

  Diaphragm

  • Frequency range, Hz: 5 000 – 8 000* (1965, 1966), 2 000 – 15 000 (1966 April), 5 000 – 18 000 (1967, 1967 May, 1968, 1969), 5 000 – 20 000 (1969, September), 7 000 – 20 000 (1972, 1973).

  * - оbviously a typo, should be "18000"

  Mechanical data

  • Distance between mounting holes, mm: 58 (1967 May).
  • Mounting hole diameter, mm: 39 (1965, 1966, 1967, 1967 May, 1968, 1969), 70 (1972, 1973).
  • Dimensions of the magnetic system LxW, mm: ⌀36 (1967 May).
  • Dimensions of the magnetic system D, mm: 15 (1967 May).
  • Basket depth, mm: 8 (1967 May).
  • Total depth, mm: 23 (1965, 1966, 1967, 1967 May, 1968, 1969), 30 (1972, 1973).
  • Weight, g: 100 (1967 May).

• Mentioned in
• -- Original prospect or advert (SWE: Radio och Television 1963/11p101, 1969/9p33; NL: Muiderkring - Jaarboekje 1965-69, 1972-73)

• Literature/Schematics (1)
• - - Manufacturers Literature (SWE: Svenska Högtalarefabriken Prislista 1967 p12)

• Literature/Schematics (2)
• -- Original prospect or advert (AU: Electronics Australia 1966 04 p131)

• Author
• Model page created by Mandrigin Sergey. See "Data change" for further contributors.

• Other Models

• Here you find 276 models, 132 with images and 212 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Svenska Högtalarefabriken (Sinus), HIFIac, HIFAB; Vårby, Bureå