• Country
• United States of America (USA)

• Manufacturer / Brand
• Murdock, WM.J. Co.; Chelsea

• Year
• 1914

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 204128

• • alternative name: William J. Murdock Co.

• Main principle
• Tuner pre 1926 (not a wave trap)

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

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Loose Coupled Receiving Transformer No. 343 - Murdock, WM.J. Co.; Chelsea

• Shape
• Tablemodel, with any shape - general.

• Notes
• The Murdock No. 343 Receiving transformer is a modification of the Murdock No. 341 Receiving Transformer. Construction is simplified to lower the cost of the instrument. The primary is wound with No. 20 bare copper wire spaced on a hard rubber composition tube 4 inches in diameter. The secondary is wound with silk covered wire, spaced on a hard rubber composition tube. With an antennae 66 feet long this transformer will tune up to 1500 meters.

• Price in first year of sale
• 8.00 $

• Mentioned in
• 1914 JJ Duck Catalog

• Literature/Schematics (1)
• February 1914 Modern Electrics & Mechanics page 237

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

• Other Models

• Here you find 88 models, 70 with images and 6 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Murdock, WM.J. Co.; Chelsea