• Country
• Germany

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

• Year
• 1964–1973

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 153097

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 2

• Valves / Tubes
• AC701k AC701k

• Main principle
• Audio-Amplification; none

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit. / 4 & 120 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Stereo-Kondensatormikrofon SM69 - Neumann, Georg, Laboratorium f

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 48 x 256 x 48 mm / 1.9 x 10.1 x 1.9 inch

• Notes
• Stereo-Kondensatormikrophon für koinzidente Aufnahmeverfahren wie MS und XY. Beide Kapseln in der Richtcharakteristik umschaltbar von Kugel bis Acht in 9 Stufen. Speisung auf Netzgerät NSMa 23.

• Net weight (2.2 lb = 1 kg)
• 0.5 kg / 1 lb 1.6 oz (1.101 lb)

• Mentioned in
• -- Schematic

• Literature/Schematics (1)
• - - Manufacturers Literature

• Author
• Model page created by Nikolaus Löwe. 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