• Country
• United States of America (USA)

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

• Year
• 1935 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 83621

• Number of Tubes
• 1

• Valves / Tubes
• 80

• Power type and voltage
• Alternating Current supply (AC) / 105/120 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 21 cm = 8.3 inch

• Power out
• 3 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Dynamic Speaker Unit 850 - Silver - Marshall; Chicago, IL

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• Dimensions (WHD)
• 380 x 370 x 250 mm / 15 x 14.6 x 9.8 inch

• Net weight (2.2 lb = 1 kg)
• 6 kg / 13 lb 3.5 oz (13.216 lb)

• Author
• Model page created by Klaus Dräger. 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