• Country
• Germany

• Manufacturer / Brand
• Sennheiser Electronic (Labor W); Wennebostel

• Year
• 1974 ?

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 176137

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: MD722-LM - Sennheiser Electronic Labor W;

• Dimensions (WHD)
• 28 x 28 x 145 mm / 1.1 x 1.1 x 5.7 inch

• Notes
• Akustische Arbeitsweise: Gradientenempfänger
  Übertragungsbereich: 80Hz bis 12kHz
  Richtungsmaß bei 120°: >= 18dB - 3dB
  Feld-Leerlauf-Übertragungsfaktor bei 1000Hz: 2,5mV/Pa +-3dB
  Elektrische Impendanz bei 1000Hz: ca.500 Ohm
  Richtcharakteristik: Superniere
  Anschluss. Dreipoliger DIN-Stecker

• Net weight (2.2 lb = 1 kg)
• 0.1 kg / 0 lb 3.5 oz (0.22 lb)

• Price in first year of sale
• 27.75 DM

• Source of data
• - - Data from my own collection

• Author
• Model page created by Willi Ribbe. See "Data change" for further contributors.

• Other Models

• Here you find 295 models, 280 with images and 135 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sennheiser Electronic (Labor W); Wennebostel