• Country
• United States of America (USA)

• Manufacturer / Brand
• Firth, John & Co. (Firco); New York, (NY)

• Year
• 1921

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 186441

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Horn / Ø 8.25 inch = 21 cm

• Material
• Special material, described in the notes.

• from Radiomuseum.org
• Model: Vocaloud Laboratory Horn Speaker - Firth, John & Co. Firco; New

• Notes
• Plaster of Paris horn composition. Nathanial Baldwin Driver. The Vocaloud's sound chamber resembles the human ear.

• Source of data
• - - Manufacturers Literature

• Mentioned in
• Radio Horn Speaker Encyclopedia, by Floyd S.Paul, p.38

• Literature/Schematics (1)
• Firco Radio Bulletin 32-A

• Author
• Model page created by Joseph Woychowski. See "Data change" for further contributors.

• Other Models

• Here you find 22 models, 20 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Firth, John & Co. (Firco); New York, (NY)