• Country
• United States of America (USA)

• Manufacturer / Brand
• Seco Manufacturing Co.; Minneapolis, MN

• Year
• 1959

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 120008

• Number of Tubes
• 1

• Valves / Tubes
• 12AU7

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: Tube Tester 78 - Seco Manufacturing Co.;

• Notes
• Manual test voltage adjustment, one 5 mA meter.

• Literature/Schematics (1)
• -- Original-techn. papers.

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

• Other Models

• Here you find 17 models, 15 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Seco Manufacturing Co.; Minneapolis, MN