• Country
• Germany

• Manufacturer / Brand
• Beyer; Berlin, später Beyerdynamic; Heilbronn

• Year
• 1950 ?

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 123073

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: Dynamisches Tauchspulenmikrofon B-M20b - Beyer; Berlin, später

• Dimensions (WHD)
• 65 x 65 x 100 mm / 2.6 x 2.6 x 3.9 inch

• Notes
• Dynamisches Tauchspulenmikrofon. Impedanz: 200 Ohm; Frequenzbereich: 50-10000 Hz; Empfindlichkeit: 0,15 mV.

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

• Price in first year of sale
• 340.00 DM

• Literature/Schematics (1)
• Funkschau (Zusatzblatt Funkschau 14. 1950)

• Author
• Model page created by Karlheinz Fischer. See "Data change" for further contributors.

• Other Models

• Here you find 149 models, 140 with images and 55 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Beyer; Berlin, später Beyerdynamic; Heilbronn