• Country
• United States of America (USA)

• Manufacturer / Brand
• Alden-Napier Manufacturing Company; Springfield (MA)

• Year
• 1925 ?

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 181989

• • Brand: Na-Ald

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Na-Ald Tube Sockets - Alden-Napier Manufacturing

• Notes
• Several models in genuine Bakelite.

• Literature/Schematics (1)
• The Radio Trade Directory USA 1925 (p.137)

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

• Other Models

• Here you find 10 models, 10 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Alden-Napier Manufacturing Company; Springfield (MA)