• Country
• United States of America (USA)

• Manufacturer / Brand
• Chelsea Radio Corp. (National); Chelsea, Boston (MA)

• Year
• 1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 117525

• Number of Tubes
• 3

• Valves / Tubes
• UV201A UV201A UV201A

• Main principle
• TRF with regeneration

• Tuned circuits
• 1 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: Magnet ZR30 [late] - Chelsea Radio Corp. National;

• Shape
• Tablemodel, slant panel.

• Notes

• See also ZR30 early with vernier dials.

• Mentioned in
• Antique Radio Classified

• Literature/Schematics (1)
• -- Original prospect or advert (Philadelphia Inquirer, September 20, 1925)

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 29 models, 25 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Chelsea Radio Corp. (National); Chelsea, Boston (MA)