• Country
• United States of America (USA)

• Manufacturer / Brand
• Signal Electric Mfg. Co.; Menominee (MI)

• Year
• 1921

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 120968

• Main principle
• Crystal or Solid State Detector

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Standard Galena No.41 - Signal Electric Mfg. Co.;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 3.37 x 1.94 x 0 inch / 86 x 49 x 0 mm

• Notes
• One knob for cat whisker, one knob to control spring presure. Original price $1.50.

• Source of data
• Crystal Clear (Volume 1)

• Mentioned in
• -- Original prospect or advert (in Menominee Herald Leader Article ~1922)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 34 models, 33 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Signal Electric Mfg. Co.; Menominee (MI)