• Country
• United States of America (USA)

• Manufacturer / Brand
• Atwater Kent Mfg. Co.; Philadelphia, USA

• Year
• 1923

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 33199

• Main principle
• Tuner pre 1926 (not a wave trap)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 4051 Model 11 Tuner - Atwater Kent Mfg. Co.;

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• Variometer for board mounting; built in 50pF cap.; outer coil windings not visible!

• External source of data
• Ernst Erb

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

• Mentioned in
• A.Atwater Kent, The Man, 2002

• Other Models

• Here you find 507 models, 330 with images and 332 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Atwater Kent Mfg. Co.; Philadelphia, USA