• Country
• United States of America (USA)

• Manufacturer / Brand
• National Dobro Co.; San Louis

• Year
• 1939

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 184109

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

• Number of Tubes
• 5

• Valves / Tubes
• 6SJ7 6SF5 6K6 6K6 80

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110-120 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Power out
• 8 W (unknown quality)

• from Radiomuseum.org
• Model: Model 60 - National Dobro Co.; San Louis

• Notes
• Musicial Instrument Amplifier.

• Author
• Model page created by Hannes Gerber. See "Data change" for further contributors.

• Other Models

• Here you find 13 models, 2 with images and 12 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from National Dobro Co.; San Louis