• Country
• Canada

• Manufacturer / Brand
• Sparton of Canada; London, ON

• Year
• 1930/1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 178757

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

• Number of Tubes
• 6

• Valves / Tubes
• 224 224 227 183 183 280

• Main principle
• TRF without regeneration

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 100-110; 110-120; 120-130 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 420 JEWEL - Sparton of Canada; London, ON

• Dimensions (WHD)
• 19 x 19 x 10 inch / 483 x 483 x 254 mm

• Price in first year of sale
• 96.00 $

• Circuit diagram reference
• Radio College of Canada

• Literature/Schematics (1)
• Canada Schematics Sparton page 8

• Author
• Model page created by Dirk Taekels. See "Data change" for further contributors.

• Other Models

• Here you find 298 models, 120 with images and 265 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sparton of Canada; London, ON