• Country
• United States of America (USA)

• Manufacturer / Brand
• Acme Apparatus Co.; Cambridge (MA)

• Year
• 1926/1927

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 200022

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• Magnetic loudspeaker (reed) generic. / Ø 11 inch = 27.9 cm

• Material
• Metal case

• from Radiomuseum.org
• Model: Acme Junior K-3 - Acme Apparatus Co.; Cambridge

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 12 x 13.5 x 4.5 inch / 305 x 343 x 114 mm

• Notes
• Acme Junior K-3 Enclosed Single Free Edge Cone Speaker. Can accept anode current up to 25 mA. Green bronze metal case. The base can be removed and replaced by a fitting to which a silk cord can be attached for wall mounting.

• Net weight (2.2 lb = 1 kg)
• 6 lb 5 oz (6.313 lb) / 2.866 kg

• Price in first year of sale
• 18.00 $

• Mentioned in
• Classic Cones (pp.3, 4)

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 21 models, 20 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Acme Apparatus Co.; Cambridge (MA)