• Country
• United States of America (USA)

• Manufacturer / Brand
• Sylvania (Hygrade, GTE, Nilco); Emporium (PA)

• Year
• 1946/1947

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 210899

• Number of Tubes
• 1

• Valves / Tubes
• 1LE3

• Wave bands
• - without

• Power type and voltage
• 105 - 125 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Tube Tester 139 - Sylvania Hygrade, GTE, Nilco;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 16.25 x 5.5 x 12 inch / 413 x 140 x 305 mm

• Notes
• 50-60 cycles, 20 watts. Two-tone green panel.

• Net weight (2.2 lb = 1 kg)
• 15.75 lb (15 lb 12 oz) / 7.151 kg

• Mentioned in
• Radio Retailing (Radio & Television R.) (September 1946 page 116, 117. November 1946 page 140. February 1947 page 121.)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 1129 models, 458 with images and 1003 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sylvania (Hygrade, GTE, Nilco); Emporium (PA)