• Country
• United States of America (USA)

• Manufacturer / Brand
• Fluke, John, Mfg. Co. Inc.; Everett (WA)

• Year
• 1960 ??

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 140660

• Number of Tubes
• 3

• Valves / Tubes
• 8068 8068 unknown_Tube

• Wave bands
• - without

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

• from Radiomuseum.org
• Model: 412B - Fluke, John, Mfg. Co. Inc.;

• Notes
• Hochspannungsnetzteil.

• Source of data
• - - Data from my own collection

• Author
• Model page created by Heinrich Siemens. See "Data change" for further contributors.

• Other Models

• Here you find 93 models, 88 with images and 66 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Fluke, John, Mfg. Co. Inc.; Everett (WA)