• Country
• United States of America (USA)

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

• Year
• 1931 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 213922

• • Brand: Pierce Airo

• Number of Tubes
• 5

• Valves / Tubes
• 24A 24A 24A 45 80

• Main principle
• TRF without regeneration; 2 AF stage(s)

• Tuned circuits
• 3 AM circuit(s)

• 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) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 522 [Tombstone] - DeWald Radio Mfg. Corp.,

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 13 x 17 x 9 inch / 330 x 432 x 229 mm

• Notes

• Two-tone wood.

  See similar model Robinhood.

• Net weight (2.2 lb = 1 kg)
• 19 lb (19 lb 0 oz) / 8.626 kg

• Source of data
• Machine Age to Jet Age II

• Mentioned in
• Cathedral & Tombstone Radios

• Author
• Model page created by Hans-Joachim Korn † 16.11.15. See "Data change" for further contributors.

• 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.