• Country
• United States of America (USA)

• Manufacturer / Brand
• Valley Electric Co.; St.Louis

• Year
• 1927

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 64633

• • Brand: Valleytone

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

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: MB Power Unit - Valley Electric Co.; St.Louis

• Notes
• "A" Power supply.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Other Models

• Here you find 18 models, 15 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Valley Electric Co.; St.Louis