Rauland AF Transformer R-12, R-21, R-13

All American Mohawk, Rauland Lyric; Chicago, IL

  • Year
  • 1922
  • Category
  • Radio part (not a module) 
  • Radiomuseum.org ID
  • 223889
    • alternative name: All American Electrical Manufacturers || All-American Radio || American Mohawk || Mohawk Corporation of Illinois || Mohawk Electric Corporation || Rauland Mfg.Co.

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Rauland AF Transformer R-12, R-21, R-13 - All American Mohawk, Rauland
  • Notes
  • Rauland Audio Frequency Transformer.

    Type R-12: 3 to 1 ratio, $4.50
    Type R-21: 5 to 1 ratio, $4.75
    Type R-13: 10 to 1 ratio, $4.75
  • Price in first year of sale
  • 4.00 USD
  • Mentioned in
  • Radio Broadcast, Feb. 1925, p. 848d
  • Literature/Schematics (2)
  • Radio Digest Illustrated, 1922 Oct. 21, p. 6

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