• Country
• Germany

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

• Year
• 1953 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 110824

• • Brand: Isophon

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) / Ø 30 cm = 11.8 inch

• Power out
• 10 W (unknown quality)

• Material
• Various materials

• from Radiomuseum.org
• Model: Orchester [mit HM10] - Isophon, E. Fritz & Co. GmbH.;

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 300 x 300 x 195 mm / 11.8 x 11.8 x 7.7 inch

• Notes

• Koaxialer 2-Wege Lautsprecher, verbesserte Ausführung mit Hochtöner HM10. Grundmodell mit Frequenzweiche, 30 bis 18000 Hz. Sonderausführungen mit angebauten Ausgangsübertragern erhältlich.

  Hochton: 10'000 Gauss, 8'000 Maxwell, Tiefton: 11'000 Gauss, 126'000 Maxwell, Resonanz: 35 Hz, Impendanz: 4 Ω. 

• Net weight (2.2 lb = 1 kg)
• 5.1 kg / 11 lb 3.7 oz (11.233 lb)

• Price in first year of sale
• 175.00 DM

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Georg Richter. See "Data change" for further contributors.

• Other Models

• Here you find 252 models, 241 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