• Country
• United States of America (USA)

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

• Year
• 1921

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 201521

• • alternative name: Lee De Forest Mfg.

• Main principle
• Crystal or Solid State Detector

• Wave bands
• Broadcast (MW) and Long Wave.

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Wavemeter SW-100 - DeForest Radio Telephone &

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

• Dimensions (WHD)
• 10.5 x 8 x 8 inch / 267 x 203 x 203 mm

• Notes
• The De Forest Type SW-100 Wavemeter covered the 150-3000 meters wavelength range with the three supplied honeycomb coils.

• Net weight (2.2 lb = 1 kg)
• 15 lb (15 lb 0 oz) / 6.810 kg

• Literature/Schematics (1)
• Deforest Radio Equipment Catalog H page 24

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

• Other Models

• Here you find 158 models, 133 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