• Country
• Japan

• Manufacturer / Brand
• Unknown - CUSTOM BUILT: Japan

• Year
• 1960 ??

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 238919

• Wave bands
• - without

• Power type and voltage
• Is a battery or storage battery / 1,5 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Volmax 1,5 V - UM-3A - Unknown - CUSTOM BUILT: Japan

• Shape
• Miscellaneous shapes - described under notes.

• Notes

• Made in Japan.

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

• Other Models

• Here you find 1140 models, 1002 with images and 96 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unknown - CUSTOM BUILT: Japan