• Country
• United States of America (USA)

• Manufacturer / Brand
• Weston Electrical Instrument Co.; Newark, N.J.; (Jewell Electrical Instrument Co.; Chicago, IL)

• Year
• 1931

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 45247

• • alternative name: Jewell

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

• Number of Tubes
• 2

• Valves / Tubes
• 30 30

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Storage and/or dry batteries / 4,5 & 22,5 Volt

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

• from Radiomuseum.org
• Model: Jewell Test Oscillator Pattern 560 - Weston Electrical Instrument

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes
• Originalpreis inklusive Röhren/Batterien/Pattern 559 Outputmeter = 97$ Exklusive Pattern 559 Outputmeter: 82$ (Händlerpreise: 73$ / 62$) Bereiche: 550Khz...1500Khz (BC)/ 125Khz...185Khz (IF)

• Price in first year of sale
• 97.00 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Literature/Schematics (1)
• -- Original prospect or advert

• Other Models

• Here you find 189 models, 164 with images and 101 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Weston Electrical Instrument Co.; Newark, N.J.; (Jewell Electrical Instrument Co.; Chicago, IL)