• Country
• United States of America (USA)

• Manufacturer / Brand
• Bell Sound Systems; Columbus (OH)

• Year
• 1963 ?

• Category
• Radio module post 1925 (not a part, not a key)

• Radiomuseum.org ID
• 135520

• Number of Tubes
• 1

• Valves / Tubes
• 6D10

• 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: Stereo Multiplex Adapter MXA-4 - Bell Sound Systems; Columbus

• Shape
• Chassis only or for «building in»

• Notes
• Externally powered one tube FM stereo multiplex adapter.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS ((Set 629 folder 6 date 4-63))

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

• Other Models

• Here you find 115 models, 111 with images and 70 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bell Sound Systems; Columbus (OH)