• Country
• Germany

• Manufacturer / Brand
• UNBEKANNTE FIRMA D / A / CH - Siehe Anleitung unter der «Firma»

• Year
• 1999 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 170848

• • alternative name: Unknown, Custom Built

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• FM Broadcast Band Only

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3.5 cm = 1.4 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: MR. Radio Speaker - UNBEKANNTE FIRMA D / A / CH -

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 75 x 150 x 42 mm / 3 x 5.9 x 1.7 inch

• Net weight (2.2 lb = 1 kg)
• 0.2 kg / 0 lb 7 oz (0.441 lb)

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

• Author
• Model page created by Werner Wussow. See "Data change" for further contributors.

• Other Models

• Here you find 467 models, 405 with images and 39 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from UNBEKANNTE FIRMA D / A / CH - Siehe Anleitung unter der «Firma»