• Country
• Switzerland

• Manufacturer / Brand
• Kudelski SA; Cheseaux-sur-Lausanne

• Year
• 1974 ?

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 254285

• • Brand: Nagra

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

• Number of Transistors
• 51

• Semiconductors
• BC184 BC214 2N3107 MJE181 or. BD789 MJE171 or. BD790 TIP47 MRD14B MLED92 1N4148 1N4003 MR812

• Wave bands
• - without

• Details
• Tape Recorder

• Power type and voltage
• Powered by external power supply or a main unit. / DC 11-30 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Nagra 10½" Large Reel Adapter QGB - Kudelski SA; Cheseaux-sur-

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 440 x 125 x 105 mm / 17.3 x 4.9 x 4.1 inch

• Notes

• The Large Reel Adapter QGB is an accessory developed for Nagra self-contained monophonic, stereophonic and instrumentation recorders model E, 4.2, IV-S and IV-SJ. It permits the use of 10½" (267 mm) reels with cine-type reel holder and flanges with NAB or AEG-type hubs, which can hold 2400 ft (730 m) of 2 mil (50 µ) tape giving 1 hour of recording.

  This very sophisticated unit is fully automatic. The QGB ensures a stable tape speed and very fast forward and rewind functions, smaller reels can also be used with advantage. The reel supports accept interchangeable adapters fitting all existing types of hubs. These are coupled to the servo motors controlled by the tensiometers, maintaining the tape tension within very narrow limits.

  The QGB can be supplied from the internal batteries of the Nagra. The Nagra-QGB system can also be powered by an ATN-3 mains power supply (or equivalent) which connects to the "power" socket of the QGB.

  Each transistor/diode listed once per type.

• Net weight (2.2 lb = 1 kg)
• 4 kg / 8 lb 13 oz (8.811 lb)

• Mentioned in
• - - Manufacturers Literature

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 49 models, 46 with images and 21 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kudelski SA; Cheseaux-sur-Lausanne