• Country
• United States of America (USA)

• Manufacturer / Brand
• Ozarka Inc.; Chicago

• Year
• 1931 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 49952

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

• Number of Tubes
• 7

• Valves / Tubes
• 27 35 35 35 27 47 80

• Main principle
• Superhet with RF-stage; ZF/IF 175 kHz

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• 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: 93-A Ch= 93 [AC] - Ozarka Inc.; Chicago

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• Dimensions (WHD)
• 420 x 515 x 280 mm / 16.5 x 20.3 x 11 inch

• Notes

• Ornamental cabinet made by Hamilton. Walnut veneer.
  There is also a cheaper version 93-B for 49.50 $.

  Same Chassis 93 used for models 93-A and 93-B.
  Different model 93 battery.

  Stein erroneously quotes only 5 tubes.

• Net weight (2.2 lb = 1 kg)
• 13.7 kg / 30 lb 2.8 oz (30.176 lb)

• Price in first year of sale
• 69.50 $

• External source of data
• Ernst Erb

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

• Circuit diagram reference
• Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)

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

• Literature/Schematics (1)
• Machine Age to Jet Age II (p.349)

• Literature/Schematics (2)
• Cathedral & Tombstone Radios (page 186.)

• Literature/Schematics (3)
• - - Manufacturers Literature

• 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