• Country
• United States of America (USA)

• Manufacturer / Brand
• National Radio Institute (NRI); Washington, DC

• Year
• 1948 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 158887

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

• Wave bands
• - without

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Professional Tube Tester 69 - National Radio Institute NRI;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 10 x 11 x 6 inch / 254 x 279 x 152 mm

• Net weight (2.2 lb = 1 kg)
• 10.5 lb (10 lb 8 oz) / 4.767 kg

• Author
• Model page created by Meyer Rochwerger. See "Data change" for further contributors.

• Other Models

• Here you find 20 models, 20 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from National Radio Institute (NRI); Washington, DC