• Country
• Germany

• Manufacturer / Brand
• Neumann, Georg, Laboratorium für Elektroakustik GmbH; Berlin

• Year
• 1932

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 71593

• Power type and voltage
• Powered by external power supply or a main unit.

• Material
• Metal case

• from Radiomuseum.org
• Model: CM9 - Neumann, Georg, Laboratorium f

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 61 x 140 x 37 mm / 2.4 x 5.5 x 1.5 inch

• Notes
• Kondensatormikrofon mit Kugelcharakteristik, mittels Bajonetverschluß aufsteckbar auf Neumann CMV5 oder Telefunken Ela M302 Braunbuchbezeichnung: M9

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

• Source of data
• -- Original prospect or advert / Radiokatalog Band 2, Ernst Erb

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

• Other Models

• Here you find 128 models, 118 with images and 47 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Neumann, Georg, Laboratorium für Elektroakustik GmbH; Berlin