• Country
• United States of America (USA)

• Manufacturer / Brand
• B&K (Precision), Dynascan Corp., Cobra Electronics; Chicago, IL and Yorba Linda, CA

• Year
• 1977 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 130869

• • alternative name: B&K Manufacturing Company

• Number of Transistors
• 1

• Semiconductors

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Bakelite or Plastics (type unknown)

• from Radiomuseum.org
• Model: Tube Tester B&K-747B - B&K Precision, Dynascan Corp.,

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 520 x 140 x 310 mm / 20.5 x 5.5 x 12.2 inch

• Notes
• Late model tube tester "B&K-747B" for fast testing modern tubes.Has 7pin miniature, nuvistor, noval, octal, loctal, decal, novar, magnoval, compactron and 10pin miniature sockets. Mutual conductance type of operation. Very portable and ligtweight.

• Source of data
• -- Original-techn. papers.

• Literature/Schematics (1)
• - - Data from my own collection

• Author
• Model page created by Sinisa Trlin. See "Data change" for further contributors.

• Other Models

• Here you find 113 models, 109 with images and 45 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from B&K (Precision), Dynascan Corp., Cobra Electronics; Chicago, IL and Yorba Linda, CA