• Country
• United States of America (USA)

• Manufacturer / Brand
• Supertone Products Co., Inc.; Brooklyn, NY

• Year
• 1934 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 62363

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A7 6D6 75 42 unknown_Tube

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

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

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

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

• from Radiomuseum.org
• Model: A-31 - Supertone Products Co., Inc.;

• External source of data
• Ernst Erb

• Literature/Schematics (1)
• Rider's Perpetual, Volume 5 = ca. 1934 and before (p.M 5-20)

• Other Models

• Here you find 12 models, 9 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Supertone Products Co., Inc.; Brooklyn, NY