• Country
• United States of America (USA)

• Manufacturer / Brand
• Service Pattern & Manufacturing Co.; Detroit, Michigan

• Year
• 1922

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 248231

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Horn

• Material
• Metal case

• from Radiomuseum.org
• Model: Clear-Tone Radio Horn Speaker - Service Pattern &

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 24 x 12 x 0 inch / 610 x 305 x 0 mm

• Notes

• Clear-Tone Radio Horn Speaker 

• Price in first year of sale
• 9.00 USD

• Literature/Schematics (2)
• November, 1922 Popular Radio magazine advertisement page 16

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Service Pattern & Manufacturing Co.; Detroit, Michigan