• Country
• Italy

• Manufacturer / Brand
• Geloso SA; Milano

• Year
• 1946

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 331091

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)

• Power out
• 12 W (max.)

• Material
• Metal case

• from Radiomuseum.org
• Model: Altoparlante Magnetodinamico Madi-W12 - Geloso SA; Milano

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 278 x 278 x 163 mm / 10.9 x 10.9 x 6.4 inch

• Notes

• Altoparlante magnetodinamico Al-Ni con potenza elettrica modulata di 12 W di punta.

  Diversi modelli:

  • MADI/ST/W12 = Impedenza 2.5 Ω, senza trasformatore
  • MADI/2/W12 = Impedenza 7000 Ω, trasformatore 2W12
  • MADI/3/W12 = Impedenza 12 kΩ, trasformatore 3W12
  • MADI/4/W12 = Impedenza 10 kΩ, trasformatore 4W12
  • MADI/7/W12 = Impedenza 2500 Ω, trasformatore 7W12
  • MADI/8/W12 = Impedenza 5000 Ω, trasformatore 8W12
  • MADI/12/W12 = Impedenze 20 - 30 - 50 Ω, trasformatore 12W12

   

• Mentioned in
• Radio Industria, numeri 7-8, maggio-luglio 1947

• Literature/Schematics (1)
• Bollettino Tecnico Geloso (N. 37-38, Autunno 1946)

• Author
• Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

• Other Models

• Here you find 952 models, 803 with images and 716 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Geloso SA; Milano