• Country
• Switzerland

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: Switzerland (CH)

• Year
• 1920 ??

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 212862

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: Pianina Grand Concert Sound Box - Unknown - CUSTOM BUILT:

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• Pianina Grand Concert Sound Box;
  Reproducer. Made in Switzerland.

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 23 models, 19 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: Switzerland (CH)