• Country
• United States of America (USA)

• Manufacturer / Brand
• Philbrick Researches, George A (GAP/R).; Dedham, MA

• Year
• 1953 ??

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 163989

• Number of Tubes
• 8

• Valves / Tubes
• 12AU7 12AX7 7025 unknown_Tube

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Dual Power Supply R-100B - Philbrick Researches, George A

• Shape
• Chassis only or for «building in»

• Notes
• Output +/-300 VDC, adjustable.

• Author
• Model page created by Gottfried Silberhorn. See "Data change" for further contributors.

• Other Models

• Here you find 7 models, 7 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philbrick Researches, George A (GAP/R).; Dedham, MA