• Country
• United States of America (USA)

• Manufacturer / Brand
• Rola Company, The; Oakland, CA

• Year
• 1929/1930

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 165712

• Number of Tubes
• 1

• Valves / Tubes
• 80

• Wave bands
• - without

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

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

• Material
• Various materials

• from Radiomuseum.org
• Model: Rola model R-AC - Rola Company, The; Oakland, CA

• Shape
• Chassis only or for «building in»

• Notes
• The Rola Electro-dynamic Speaker R-AC is equipped with a type 280 (80) rectifier-tube for operation directly on 110-volt AC light socket.

• Price in first year of sale
• 70.00 $

• Literature/Schematics (1)
• Lafayette Radio Catalog (Lafayette Catalog 1930 for season 1929/30, page 36-38.)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 12 models, 11 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Rola Company, The; Oakland, CA