• Country
• United States of America (USA)

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

• Year
• 1947 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 120372

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

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110-120 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Professional Radio Tube Tester 68 - National Radio Institute NRI;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 10 x 6.5 x 10 inch / 254 x 165 x 254 mm

• Notes

• Advertised in National Radio News Vol 13 Oct-Nov 1948 No. 5 (Issued by NRI Training headquarters)

  • Attaché case package with detachable lid.
  • Tests Electric Eyes, Pilot Lamps and Gaseous Rectifiers.
  • 19 filament taps.
  • 10 Tube sockets.
  • Neon lamp for short tests.

• Net weight (2.2 lb = 1 kg)
• 11.5 lb (11 lb 8 oz) / 5.221 kg

• Price in first year of sale
• 42.50 USD

• 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 21 models, 21 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