AC SW-58

National Company; Cambridge & Malden (MA)

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  • Year
  • 1932 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 49553
    • alternative name: National Toy Co.
    • Brand: Thrillbox

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • TRF with regeneration; 2 AF stage(s)
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Alternating Current supply (AC) / 2,5 / 180/300 Volt
  • Loudspeaker
  • - For headphones or amp.
  • from Radiomuseum.org
  • Model: AC SW-58 - National Company; Cambridge &
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • four shortwave + three optional medium wave plug-in coils (same as SW-5): 15,5-26,6 m / 23,5-41 m / 37,5-65 m / 64-115 m (1,7 - 20 MHz) optional plug-in coils 110-175 m / 170-300 m / 290 - 570 m (2727 - 526 kHz),
    new linear dial instead of vertical drum dial found in the original SW-5
    matching external power supply National 5880ABS (5 prong plug)
    this model mentionned in Rider's is possibly identical to the SW-58 set.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before

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