• Country
• United States of America (USA)

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

• Year
• 1928

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 63958

• • Brand: Sentinel

• Number of Tubes
• 7

• Valves / Tubes

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Power type and voltage
• Alternating Current supply (AC)

• from Radiomuseum.org
• Model: 7 tubes - United Air Cleaner Corp. - see

• Shape
• Tablemodel, with any shape - general.

• Notes
• One dial (primary tuning control knob)

• Price in first year of sale
• 33.00 $

• External source of data
• Ernst Erb

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

• 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