• Country
• United States of America (USA)

• Manufacturer / Brand
• Jackson-Bell Co. (pre 1935); Los Angeles

• Year
• 1929 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 69016

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

• Number of Tubes
• 5

• Valves / Tubes
• 224 224 224 245 280

• Main principle
• TRF without regeneration; Screengrid 1926-1935

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 112 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Junior 50 - Jackson-Bell Co. pre 1935; Los

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 7 = 1936 and before

• Mentioned in
• Cathedral & Tombstone Radios (page 141.)

• Other Models

• Here you find 83 models, 36 with images and 43 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Jackson-Bell Co. (pre 1935); Los Angeles