• Country
• Taiwan (Republic of China)

• Manufacturer / Brand
• Topward Electric Instruments Co., Topwing Trading Co.; Taipei

• Year
• 2000 ??

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 321507

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 100; 120; 220; 240 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: DC Power Supply 6303DS - Topward Electric Instruments

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 230 x 160 x 324 mm / 9.1 x 6.3 x 12.8 inch

• Notes

• Topward Electric Instruments Co., Ltd., 6303DS

  Twin variable power output Direct Current Power Supply with tracking function for automatic selection of parallel or serial connection.

  Output:

  • 0-30V x 2
  • 0-3A x 2
  • Fixed 5V / 5A

   

• Net weight (2.2 lb = 1 kg)
• 9 kg / 19 lb 13.2 oz (19.824 lb)

• Literature/Schematics (1)
• -- Schematic

• Author
• Model page created by Miguel Bravo-Cos. See "Data change" for further contributors.

• Other Models

• Here you find 4 models, 2 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Topward Electric Instruments Co., Topwing Trading Co.; Taipei