• Year
  • 1938–1941
  • Category
  • Amateur Equipment (Other, but not Key)
  • Radiomuseum.org ID
  • 285912
    • 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
  • 8
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 105-125 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Modulator NSM - National Company; Cambridge &
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Notes
  • The National NSM modulator was specifically designed to be paired with the National NTX-30 transmitter.  Frequency response is flat from 50 to 10,000 cycles.

  • Price in first year of sale
  • 130.00 USD
  • Mentioned in
  • National Company 1941 Catalog page 15
  • Author
  • Model page created by Wayne Childress. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum