• Country
• United States of America (USA)

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

• Year
• 1934 ?

• Category
• Commercial Receiver (may include amateur bands)

• Radiomuseum.org ID
• 85184

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

• Number of Tubes
• 9

• Valves / Tubes
• 236 236 236 237 77 78 78 78 89

• Main principle
• Superheterodyne (common); ZF/IF 500 kHz

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Alternating Current supply (AC) / 6 / 170 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: AGS [var 4] - National Company; Cambridge &

• Shape
• Rack

• Notes
• covering 1500 - 20000 kHz, five sets of plug-in coils, four sets of bandspread coils for amateur bands 160 - 20 m,
  different tube layout, uses a 77 and 78s instead of 236s
  matching external power supply 5886AB

• Source of data
• Communications Receivers

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

• Other Models

• Here you find 445 models, 284 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)