• Country
• United States of America (USA)

• Manufacturer / Brand
• Elkay, Langbein Kaufmann Co.

• Year
• 1926

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 233031

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Tube Equalizer System - Elkay, Langbein Kaufmann Co.

• Notes

• Tube Equalizer System. Equalizer 50C, with clip 75C.

   

   

   

• Literature/Schematics (1)
• Radio Broadcast, May 1926, p. 80

• Author
• Model page created by Hans-Joachim Korn † 16.11.15. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Elkay, Langbein Kaufmann Co.