• Country
• United States of America (USA)

• Manufacturer / Brand
• DeWald Radio Mfg. Corp., Pierce Airo Inc.

• Year
• 1939/1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 37436

• • Brand: Pierce Airo

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

• Number of Tubes
• 4

• Valves / Tubes
• 12K7GT 12F5GT 50L6GT 45Z5GT

• Main principle
• TRF without regeneration; 1 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 105-125 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Bakelite or Plastics (type unknown)

• from Radiomuseum.org
• Model: 406-R Bantam - DeWald Radio Mfg. Corp.,

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes

• Brown bakelite ($ 9.95) or Ivory, Red or Blue plaskon ($ 11.95).
  BC band 540-1750 kHz.

• External source of data
• Ernst Erb

• Source of data
• Table Top Radios Vol. 1 Stein 98

• Circuit diagram reference
• Rider's Perpetual, Volume 10 = 1939 and before

• Mentioned in
• Machine Age to Jet Age (Vol. 1)

• Literature/Schematics (3)
• The DeWald Folder for 1940, Form. 50M 1-40 L.

• Other Models

• Here you find 442 models, 195 with images and 344 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from DeWald Radio Mfg. Corp., Pierce Airo Inc.