• Country
• United States of America (USA)

• Manufacturer / Brand
• Ozarka Inc.; Chicago

• Year
• 1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 206267

• Number of Tubes
• 8

• Valves / Tubes
• 224 224 224 224 227 245 245 280

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

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Details
• Record Player (perh.Changer)

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Blenheim 91 AC - Ozarka Inc.; Chicago

• Shape
• Console with any shape - in general

• Notes
• Push-pull af output stage.

• Circuit diagram reference
• Rider's Perpetual, Volume 3 = 1933 and before

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

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 92 models, 61 with images and 20 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ozarka Inc.; Chicago