• Country
• United States of America (USA)

• Manufacturer / Brand
• United Air Cleaner Corp. - see also Sentinel

• Year
• 1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 63928

• • Brand: Sentinel

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

• Number of Tubes
• 7

• Valves / Tubes
• 24A 24A 24A 27 45 45 80

• Main principle
• TRF without regeneration; 2 AF stage(s); Screengrid 1926-1935

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 11 Ch=104 - United Air Cleaner Corp. - see

• Shape
• Console, Lowboy (legs < 50 %).

• Notes
• One dial (primary tuning control knob) . Rectifier 80 in separate pack.

• Price in first year of sale
• 130.00 $

• 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
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Literature/Schematics (1)
• Pre-War Consoles

• Literature/Schematics (2)
• Radio Retailing (Radio & Television R.) (August, September, October and November 1930)

• Other Models

• Here you find 43 models, 11 with images and 25 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from United Air Cleaner Corp. - see also Sentinel