• Country
• Great Britain (UK)

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: GB

• Year
• 1950 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 347264

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Hape Portable Speaker B4MO 2729 - Unknown - CUSTOM BUILT: GB

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 150 x 170 x 80 mm / 5.9 x 6.7 x 3.1 inch

• Notes

• Portable Speaker: RoLa, B4Mo 2729.

  Can be hung on the wall.

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 118 models, 108 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: GB