• 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.

 Technical Specifications

  • 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

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