• Country
• United States of America (USA)

• Manufacturer / Brand
• Tektronix; Portland, OR

• Year
• 1960–1964

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

• Radiomuseum.org ID
• 113150

• Number of Tubes
• 3

• Valves / Tubes
• 12AU6 ECC88 or 6DJ8 ECC86 or 6GM8

• Number of Transistors
• 3

• Semiconductors
• 2N212 2N250 2N226

• Wave bands
• - without

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Plug-in adapter 81 - Tektronix; Portland, OR

• Notes
• The 81 adapter interfaces the 580 series mainframes (581, 585, 585A) with the letter series plug-ins, such as the CA.

• Mentioned in
• Tektronix 1964 Abridged Catalog

• Literature/Schematics (1)
• - - Manufacturers Literature (1960)

• Author
• Model page created by Emilio Ciardiello. 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