• Country
• United States of America (USA)

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

• Year
• 1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 33315

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

• Number of Tubes
• 7

• Valves / Tubes
• UY224 or C324 UY224 or C324 UY227 or C327 UY227 or C327 UX171A or CX371A UX171A or CX371A UX280 or CX380

• Main principle
• TRF without regeneration; Screengrid 1926-1935

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: 55F table model [late; 25 Hz mains] - Atwater Kent Mfg. Co.;

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

• Dimensions (WHD)
• 21.2 x 6.75 x 10.7 inch / 538 x 171 x 272 mm

• Notes
• For 25 cycles AC.
  ATTENTION: From the exterior view early and late Models are looking the same. Only the chassis circuitry and some components are different. Most probably the majority is late, since from the same year( which looks like an initial design or layout problem of self oscillation in the RF section).
  Set images can be identical for early and late model.

• Price in first year of sale
• 88.00 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 3 = 1933 and before

• 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