• Country
• United States of America (USA)

• Manufacturer / Brand
• Tektronix; Portland, OR

• Year
• 1955–1964

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 89061

• Number of Tubes
• 6

• Valves / Tubes
• 5879 5879 12AU7 12AU7 12AU7 12AU7

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Plug-In-Unit Type D 53/54D - Tektronix; Portland, OR

• Shape
• Chassis only or for «building in»

• Notes
• High-Gain DC Differential plug-in unit for 531 to 551 series scopes.

• Price in first year of sale
• 155.00 $

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

• Author
• Model page created by Hannes Wurnitsch. See "Data change" for further contributors.

• Other Models

• Here you find 386 models, 374 with images and 92 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tektronix; Portland, OR