• Country
• Germany

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

• Year
• 1956–1966

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 283022

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

• Number of Transistors
• 1

• Semiconductors
• AD130

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 117; 220; 240 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Netzanschlussgerät NSMa23u-930-00 - Neumann, Georg, Laboratorium f

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 100 x 120 x 220 mm / 3.9 x 4.7 x 8.7 inch

• Notes

• Power supply for SM2 and SM23 stereo microphones with AC701 k tube

  Output

  • 4V 100 mA x 2 (heaters)
  • 120V 0,5 mA 2 2 (anode)
  • 0...120V in 9 steps for polar pattern remote control

  12 pin female tuchel connector for microphone cable and 5 pin tuchel connector for stereo output signal.

   

• Mentioned in
• - - Manufacturers Literature (Neumann brochure)

• Author
• Model page created by Matti Adolfsen. 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