• Country
• United States of America (USA)

• Manufacturer / Brand
• Jefferson Electric Mfg. Co.; Chicago (IL)

• Year
• 1925 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 197655

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Radio Tube Charger 280 - Jefferson Electric Mfg. Co.;

• Shape
• Tablemodel, with any shape - general.

• Notes
• Jefferson Radio Tube Charger 280;
  Used to rejuvenate 01 tubes. It uses a transformer with two different voltages to rejuvenate the tubes filament.

• Author
• Model page created by Tom Guest. See "Data change" for further contributors.

• Other Models

• Here you find 9 models, 8 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Jefferson Electric Mfg. Co.; Chicago (IL)