• Country
• United States of America (USA)

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

• Year
• 1926

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 199578

• • Brand: Na-Ald

• Number of Tubes
• 3

• Valves / Tubes

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

• Loudspeaker
• - This model requires external speaker(s).

• Material
• TUBES VISIBLE, material not known.

• from Radiomuseum.org
• Model: Tru-Phonic Power Amplifier - Alden-Napier Manufacturing

• Shape
• Tablemodel, with any shape - general.

• Notes
• 3 tube resistance coupled amplifier.

• Price in first year of sale
• 20.00 $

• Mentioned in
• Radio Broadcast, Nov. 1926, Page 80

• Author
• Model page created by Hans-Joachim Korn † 16.11.15. 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)