• Year
  • 1934 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 105850
    • Brand: Pierce Airo

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz; 1 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • from Radiomuseum.org
  • Model: 504 - DeWald Radio Mfg. Corp.,
  • Notes
  • Chassis similar to model 503. Riders displays a schematic 503-4 which is common for 503 and 504.
  • Circuit diagram reference
  • Rider's Perpetual, Volume 5 = ca. 1934 and before

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