• Country
• Germany

• Manufacturer / Brand
• Isophon, E. Fritz & Co. GmbH.; Berlin

• Year
• 1962 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 170336

• • Brand: Isophon

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 13 cm = 5.1 inch

• Power out
• 3 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Colorphon TW4 - Isophon, E. Fritz & Co. GmbH.;

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 250 x 75 x 150 mm / 9.8 x 3 x 5.9 inch

• Notes
• Zusatzlautsprecher (4,5 Ohm). Einsatzmöglichkeiten: am Tisch, an der Wand oder Deckenmontage möglich.

• Net weight (2.2 lb = 1 kg)
• 0.670 kg / 1 lb 7.6 oz (1.476 lb)

• Price in first year of sale
• 42.00 DM

• Literature/Schematics (4)
• Rimpex-Katalog, 1966

• Author
• Model page created by Museum Roggenhofer. See "Data change" for further contributors.

• Other Models

• Here you find 253 models, 242 with images and 32 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Isophon, E. Fritz & Co. GmbH.; Berlin