• Country
• United States of America (USA)

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

• Year
• 1938–1941

• Category
• Amateur Transmitter (only)

• Radiomuseum.org ID
• 285914

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

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

• Number of Tubes
• 8

• Valves / Tubes
• 6L6 6L6 6L6 6L6 6L6G 6L6G 83 83

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 105-125 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Transmitter NTX-30 - National Company; Cambridge &

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Notes

• The National NTX-30 is a 30-watt crystal controlled transmitter for CW on 10, 20, 40 and 80 meters. It can be used for phone operation with the addition of an external modulator.

• Price in first year of sale
• 195.00 USD

• Mentioned in
• National Company 1941 Catalog page 14

• Author
• Model page created by Wayne Childress. 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)