• Country
• United States of America (USA)

• Manufacturer / Brand
• Bristol Co., The; Waterbury (CT)

• Year
• 1925

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 125944

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Comparophon Loud Speaker Test Set - Bristol Co., The; Waterbury CT

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes
• "Let the customer be the judge."
  This test unit allowed to compare three loud speakers by a selector switch.

• Price in first year of sale
• 60.00 $

• Mentioned in
• Floyd A.Paul, Horn Speaker Encyclopedia

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 13 models, 12 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bristol Co., The; Waterbury (CT)