• Country
• Germany

• Manufacturer / Brand
• Ehrich & Graetz AG; Graetz Radio GmbH; Berlin

• Year
• 1927 ?

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 193437

• • Brand: Telwerk

• Number of Tubes
• 2

• Valves / Tubes
• R44 R44 Eisen-Wasserstoff-W Eisen-Wasserstoff-W

• 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, TUBES VISIBLE

• from Radiomuseum.org
• Model: Doppel-Ladegleichrichter für Heizakkus - Ehrich & Graetz AG; Graetz

• Shape
• Tablemodel, with any shape - general.

• Notes
• Der Telwerk-Doppel-Ladegleichrichter dient zum Laden von Heizakkumulatorzellen mit einer Stromstärke von 2,8 A.

• Literature/Schematics (1)
• Pfalzgraf-Broschüre, 1927

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

• Other Models

• Here you find 6 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ehrich & Graetz AG; Graetz Radio GmbH; Berlin