• Country
• United States of America (USA)

• Manufacturer / Brand
• Sparks-Withington Co., (Sparton); Jackson, Michigan

• Year
• 1935/1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 122061

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

• Number of Tubes
• 5

• Valves / Tubes
• 78 78 75 43 25Z5

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• AC/DC-set / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Various materials

• from Radiomuseum.org
• Model: Sparton 566 Peachbird Ch= 506 [Peach mirror] - Sparks-Withington Co., Sparton

• Shape
• Design Radio or Novelty / Gadget - fancy or unusual shape.

• Notes

• Peach circular mirror is a model 566, not 506. 147 Ohms resistance cord.

  One often sees the Bluebird referred to in guidebooks and on internet sites as the Model 506 ... Not only did Sparton "proudly announce Bluebird Model 566" in one of their brochures but there is also the matter of their approach to model numbering. In June of 1935 they announced to the world their line of 1936 "regular" models, the entry level set being the Model 506, a small 5-tube ornamental mantel set priced at $29.95, the cabinet being made entirely out of wood. Later that year they unveiled their "Teague" line of upscale models, and shortly after that the Bluebird. Now, Sparton's model numbering system at that time used the number of tubes (often not counting the eye tube) as the first number, a model identifier as the second, and the last digit of the model year as the third. Key here is the fact that the second number was chosen to create a unique identifier, ensuring that no two models ended up with the same number. Thus, the 5-tube 1936 mantel set was the 506 and the 5-tube 1936 Bluebird the 566...

• Source of data
• Collector's Guide to Antique Radios (7th Edition)

• Circuit diagram reference
• Rider's Perpetual, Volume 6 = 1935 and before

• Mentioned in
• Machine Age to Jet Age II (page 282.)

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

• Other Models

• Here you find 817 models, 365 with images and 754 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sparks-Withington Co., (Sparton); Jackson, Michigan