• Country
• United States of America (USA)

• Manufacturer / Brand
• Silver - Marshall; Chicago, IL

• Year
• 1929

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 103924

• Number of Tubes
• 2

• Valves / Tubes
• 226 210_UX-Triode

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: SM-678 P - Silver - Marshall; Chicago, IL

• Shape
• Tablemodel, with any shape - general.

• Notes

• Power amplifier stage plus power supply in steel case.

• Price in first year of sale
• 78.00 $

• Literature/Schematics (1)
• Walter Ashe Radio Co. catalogue for season 1928-1929

• Author
• Model page created by Vitor Oliveira. See "Data change" for further contributors.

• Other Models

• Here you find 225 models, 116 with images and 122 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Silver - Marshall; Chicago, IL