• Country
• United States of America (USA)

• Manufacturer / Brand
• DeForest Radio Telephone & Telegraph Co. (De Forest); New York

• Year
• 1921

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 193987

• • alternative name: Lee De Forest Mfg.

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Mounted Triple Coil Mounting LC-400 - DeForest Radio Telephone &

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• The De Forest LC-400 Three Coil Mounting consists of brass angle piece holding three coil receptacles which move on bearings so that coupling between the coils can be changed at will. De Forest coils were manufactured by Coto-Coil (Providence, RI). Chief Engineer Gowen designed the Unit Receiver and the plug-in coils, but end of 1918 De Forest reclined that. In 1919 the business went down, and De Forest authorized Gowen to proceed with the developments. By order of De Forest Gowen contacted Thomas Giblin, President of Coto-Coil. Coto-Coil as well as Giblin both manufactured later coils under their own name. Giblin also built radios.

• Net weight (2.2 lb = 1 kg)
• 1 lb 8 oz (1.5 lb) / 0.681 kg

• Price in first year of sale
• 3.00 $

• Literature/Schematics (1)
• De Forest Catalog "L" page 16

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

• Other Models

• Here you find 158 models, 132 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from DeForest Radio Telephone & Telegraph Co. (De Forest); New York