• Country
• United States of America (USA)

• Manufacturer / Brand
• Simplex Radio Co.; Philadelphia, PA and Sandusky, OH

• Year
• 1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 58071

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

• Number of Tubes
• 5

• Valves / Tubes
• 24 35 24 47 80

• Main principle
• Superheterodyne (common); ZF/IF 175 kHz

• Tuned circuits
• 4 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet.

• Material
• Metal case

• from Radiomuseum.org
• Model: Ch= P [47 tube] - Simplex Radio Co.;

• Shape
• Chassis only or for «building in»

• Price in first year of sale
• 29.00 $

• External source of data
• Ernst Erb

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

• Circuit diagram reference
• Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)

• Mentioned in
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Literature/Schematics (1)
• Rider's Perpetual, Volume 4 = ca. 1934 and before

• Other Models

• Here you find 178 models, 91 with images and 64 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Simplex Radio Co.; Philadelphia, PA and Sandusky, OH