• Country
• United States of America (USA)

• Manufacturer / Brand
• National Company; Cambridge & Malden (MA)

• Year
• 1933 ?

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 85335

• • alternative name: National Toy Co.
  • Brand: Thrillbox

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

• Number of Tubes
• 5

• Valves / Tubes
• 58 58 27 45 45

• Main principle
• TRF with regeneration

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: SW-58C - National Company; Cambridge &

• Shape
• Rack

• Notes
• coverage 2600 - 22000 kHz, with optional plug-in coils from the "60-72" series long- and mediumwaves are covered also;
  found as secondary or auxiliary receiver, often in a rack together with the AGS receiver;
  matching power supply GRDPU for both receivers

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 446 models, 285 with images and 189 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from National Company; Cambridge & Malden (MA)