• 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
• 58082

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

• Wave bands
• Broadcast only (MW).

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Q 1931 [47 tube] - Simplex Radio Co.;

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• External source of data
• Ernst Erb

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

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

• Literature/Schematics (2)
• Cathedral & Tombstone Radios (page 250.)

• 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