• Country
• United States of America (USA)

• Manufacturer / Brand
• Mallory, P.R. & Co.; Indianapolis, IN

• Year
• 1960 ??

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 258422

• Wave bands
• - without

• Power type and voltage
• Is a battery or storage battery / 15 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Electronic Battery - 15 Volts M-504 - Mallory, P.R. & Co.;

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 36 models, 29 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Mallory, P.R. & Co.; Indianapolis, IN