• Country
• Germany

• Manufacturer / Brand
• Undy-Werke, Pyreia Metallwarenfabrik; Frankfurt / Main

• Year
• 1929 ?

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 150786

• Wave bands
• - without

• Details
• Power: Charger for A-Batteries

• Power type and voltage
• Alternating Current supply (AC) / 220 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Cuprox Trockengleichrichter - Undy-Werke, Pyreia

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 185 x 90 x 105 mm / 7.3 x 3.5 x 4.1 inch

• Notes
• Was used as a battery rectifier or as a power source for loudspeaker exciter current, together with a capacitor. Input 220V AC, output 4V DC.

• Author
• Model page created by John Koster. See "Data change" for further contributors.

• Other Models

• Here you find 38 models, 37 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Undy-Werke, Pyreia Metallwarenfabrik; Frankfurt / Main