• Country
• United States of America (USA)

• Manufacturer / Brand
• MILITARY U.S. (different makers for same model)

• Year
• 1941 ??

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 194477

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Crystal CR-1A/AR - MILITARY U.S. different makers

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 1.125 x 2.188 x 0.375 inch / 29 x 56 x 10 mm

• Notes
• Used in WW2-era USAF HF and VHF transmitters;
  Crystal Unit 1-1/8" wide X 3/8" X 1-1/8" tall;
  Pin spacing 1/2" and pin diameter 1/8" X 11/16" long.

• Net weight (2.2 lb = 1 kg)
• 0.050 kg / 0 lb 1.8 oz (0.11 lb)

• Source of data
• - - Data from my own collection

• Author
• Model page created by Emilio Focosi. See "Data change" for further contributors.

• Other Models

• Here you find 393 models, 345 with images and 210 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from MILITARY U.S. (different makers for same model)