• Country
• United States of America (USA)

• Manufacturer / Brand
• Freed-Eisemann Radio Corp.; New York, NY

• Year
• 1924

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 40976

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 5

• Valves / Tubes
• UV201A or C301A UV201A UV201A UV201A UV201A

• Main principle
• TRF without regeneration; Neutrodyne

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: NR-20 - Freed-Eisemann Radio Corp.;

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 710 x 210 x 210 mm / 28 x 8.3 x 8.3 inch

• Notes

• The Freed-Eisemann model NR-20 has three dials (primary tuning control knobs).
  The "Freed-Eisemann Dealer Catalog 1924" lists the models NR-5 (from April 1923), NR-6, NR-12, NR-20, NR-215, NR-400, Speaker FE-50 for models NR-5, NR-6 and NR-20, Speaker Console FE-150 matching NR-20, and FE-5C.
  
  See more about dating this model and naming the tubes here. We try to show the original tube line up, not the later replacement tubes found at some schematics etc.

• Price in first year of sale
• 175.00 $

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Literature/Schematics (1)
• Radio Manufacturers of the 1920's, Vol. 2

• Other Models

• Here you find 205 models, 106 with images and 128 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Freed-Eisemann Radio Corp.; New York, NY