• Country
• United States of America (USA)

• Manufacturer / Brand
• Crosley Radio Corp.; Cincinnati (OH)

• Year
• 1923

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 36558

• Number of Tubes
• 2

• Valves / Tubes
• UV201A or WD12 or UV199 UV201A or WD12 or UV199

• Main principle
• Audio-Amplification; 2 AF stage(s)

• Wave bands
• - without

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: IV - Crosley Radio Corp.;

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 11.5 x 6 x 5 inch / 292 x 152 x 127 mm

• Notes
• This model employs a separate Multistat for each tube, hence prmitting any mix of tubes. The Multistat is a rheostat with two different sections: from the "off" position the first 55% swing got 24.5 Ohms (for dry battery tubes) and the remaining 55% swing got ca. 3 Ohms (for storage battery types).
  The Crosley IV 2-Stage Audio Amplifier was designed to match up uniformly with any of the Crosley receivers such as the V or the VI. The VI receiver and the IV 2-Step amplifier were electrically equivalent to the Crosley Model X. (VI+IV=X) or 6+4=10

• Price in first year of sale
• 18.00 $

• External source of data
• Ernst Erb

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

• Mentioned in
• Guide to Old Radios

• Literature/Schematics (1)
• Radio Manufacturers of the 1920s, Vol 1 (Page 118)

• Other Models

• Here you find 1791 models, 1048 with images and 1282 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Crosley Radio Corp.; Cincinnati (OH)