• Country
• United States of America (USA)

• Manufacturer / Brand
• Olson Radio Corporation, Olson Electronics Inc; Akron, OH

• Year
• 1962 ?

• Category
• Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter

• Radiomuseum.org ID
• 136472

• Number of Tubes
• 2

• Valves / Tubes

• Wave bands
• FM Broadcast Band Only

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: RA-490 Ch= MX-601 - Olson Radio Corporation, Olson

• Shape
• Chassis only or for «building in»

• Notes
• Externally powered FM stereo multiplex adapter.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 637 folder 11 date 6-63)

• Author
• Model page created by Peter Hoddow. See "Data change" for further contributors.

• Other Models

• Here you find 42 models, 38 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Olson Radio Corporation, Olson Electronics Inc; Akron, OH