• Country
• United States of America (USA)

• Manufacturer / Brand
• Kolster; USA

• Year
• 1926

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 45624

• • Brand: International

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

• Number of Tubes
• 7

• Valves / Tubes
• UX201A UX201A UX201A UX201A UX201A UX201A UX112 or UX171A

• Main principle
• TRF without regeneration

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - This model requires external speaker(s).

• from Radiomuseum.org
• Model: 7-A - Kolster; USA

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 28 x 13 x 14 inch / 711 x 330 x 356 mm

• Notes

• One dial (primary tuning control knob)

• Price in first year of sale
• 125.00 $

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

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

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Other Models

• Here you find 102 models, 48 with images and 67 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kolster; USA