• Country
• United States of America (USA)

• Manufacturer / Brand
• Eveready (Ever Ready), AENMC / National Carbon Company (NCC); Columbia

• Year
• 1939 ??

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 119107

• Wave bands
• - without

• Power type and voltage
• Is a battery or storage battery / 300 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Mini-Max Battery 493 Neda 722 [300 Volts] - Eveready Ever Ready, AENMC /

• Dimensions (WHD)
• 2.5 x 3.75 x 2 inch / 64 x 95 x 51 mm

• Notes
• Low drain high voltage "B"-Battery.

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 157 models, 138 with images and 20 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Eveready (Ever Ready), AENMC / National Carbon Company (NCC); Columbia