• Country
• United States of America (USA)

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

• Year
• 1931

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 36599

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

• Number of Tubes
• 5

• Valves / Tubes
• NY224 NY224 NY224 NX112A NX112A

• Main principle
• TRF without regeneration; Screengrid 1926-1935

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (free mooving - only possible past 1931).

• Material
• Metal case

• from Radiomuseum.org
• Model: Roamio 91 - Crosley Radio Corp.;

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 344 x 290 x 225 mm / 13.5 x 11.4 x 8.9 inch

• Notes
• For the Roamio car radio number 91 from Corsley we list the original tube line up, not the newer names 24 and 12A.ybr /> The Roamio car radio was installed in 3 peaces: the dial with the key switch, the station finder knob and the volume knob with wire plus mechanical "turning connection" (stations). This was connected to the main chassis with the actual radio and loudspeaker-combination. Separatly comes the power unit as a third item.
  Roamio stayed as name for Crosley car radios for quite some years - telling the model (year) by an additional number.
  The chassis of the Roamio 91 with the 5 tubes has a depht of 17 cm and the screwed-on loudspeaker, Crosley model 279, takes another 5.5 cm. The dial is 11 cm wide and has a height of 13.7 cm. It shows the frequency (Kc) in red and numbers from 0 to 100 in black. The screws on the iron case have rectangular heads. We would be interested to know the differences between the very early models like Roamio 90, Roamio 92 etc.

• External source of data
• Ernst Erb

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

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

• 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)