• Country
• United States of America (USA)

• Manufacturer / Brand
• Sears, Roebuck & Co.; Chicago (IL)

• Year
• 1917

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 218634

• • Brand: Silvertone

• Main principle
• Tuner pre 1926 (not a wave trap)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Comet Receiving Transformer - Sears, Roebuck & Co.; Chicago

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 15 x 6.75 x 6 inch / 381 x 171 x 152 mm

• Notes
• Sears, Roebuck and Co. Comet Receiving Transformer The primary is wound with enameled copper wire. Primary variation by means of a slider, secondary by means of an eight-point switch. Secondary is wound with green silk covered wire. The instrument will tune to approximately 1,200 to 2,000 meters with a suitable antenna.

• Net weight (2.2 lb = 1 kg)
• 9 lb (9 lb 0 oz) / 4.086 kg

• Price in first year of sale
• 5.00 $

• Literature/Schematics (1)
• 1917 Sears, Roebuck and Co. Wireless Apparatus catalog page 50

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 5479 models, 3211 with images and 4185 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sears, Roebuck & Co.; Chicago (IL)