• Country
• United States of America (USA)

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

• Year
• 1913 ?

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

• Radiomuseum.org ID
• 141218

• • alternative name: William J. Murdock Co.

• Main principle
• Crystal or Solid State Detector

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: Receiving Set 505 - Murdock, WM.J. Co.; Chelsea

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 17.5 x 12 x 8 inch / 445 x 305 x 203 mm

• Notes
• Murdock Receiving Set No.505;
  Features:
  Loose coupler with slider on primary coil and 6 times tapped on secondary coil, No.510 7-step loading inductance, variable condenser, rotary variable secondary condenser, silicon detector, testing buzzer with battery, double headphones, mahogany base.

• Mentioned in
• - - Manufacturers Literature (Murdock Apparatus Catalogue No.14)

• Author
• Model page created by a member from A. 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