• Country
• Germany

• Manufacturer / Brand
• Neumann & Co, Georg; Gefell

• Year
• 1957

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 147924

• Number of Tubes
• 1

• Valves / Tubes
• DF67 or DF167

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit. / 30 & 0.625 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: Kondensatormikrofon CMV571 - Neumann & Co, Georg; Gefell

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 190 x 50 x 100 mm / 7.5 x 2 x 3.9 inch

• Notes
• Reportermikrofon mit M18 Kapsel ( Kugel).
  Ladespannung 80V.
  Speisung Anode 30V / Heizung 0,625V.

• Net weight (2.2 lb = 1 kg)
• 0.4 kg / 0 lb 14.1 oz (0.881 lb)

• Mentioned in
• - - Data from my own collection

• Other Models

• Here you find 63 models, 59 with images and 13 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Neumann & Co, Georg; Gefell