• Country
• Denmark

• Manufacturer / Brand
• Brüel & Kjær; Nærum

• Year
• 1968

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 138488

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Dry Batteries / 3 x 1,5 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Precision Sound Level Meter 2203 [FET] - Brüel & Kjær; Nærum

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 120 x 310 x 90 mm / 4.7 x 12.2 x 3.5 inch

• Notes
• Die 2. Ausgabe des Brüel & Kjær Präzisions-Schallpegelmessers 2203 benutzt einen Feldeffekt-Transistor als Impedanzwandler für die Kondensatormikrofon-Kapsel.
  Schallpegelmessung je nach Mikrophon 19-148 dB.
  Schallpegel dB-A/B/C/Linear, 20 Hz - 18 kHz bzw. 30 kHz.
  Zubehör: Anschraubbares Oktavfilter Typ 1613.

• Net weight (2.2 lb = 1 kg)
• 2.7 kg / 5 lb 15.2 oz (5.947 lb)

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by Michael Türck. See "Data change" for further contributors.

• Other Models

• Here you find 63 models, 61 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Brüel & Kjær; Nærum