• Country
• United States of America (USA)

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

• Year
• 1952–1964

• Category
• Amateur-Receiver (amateur bands, may include broadcast bands)

• Radiomuseum.org ID
• 83939

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

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

• Number of Tubes
• 16

• Valves / Tubes
• 6BA6 6BA6 6BE6 6C4 6BE6 6SG7 6SG7 6SG7 6H6 6H6 6SN7GT 6SJ7 6V6GT 6V6GT 6SJ7 5V4G 4H4C

• Main principle
• Superhet, double/triple conversion; ZF/IF 2010/455 kHz; 2 AF stage(s)

• Wave bands
• Broadcast, Long Wave and more than two Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 115/230 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 8 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: HRO-60 - National Company; Cambridge &

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

• Dimensions (WHD)
• 19.75 x 10.125 x 16.5 inch / 502 x 257 x 419 mm

• Notes

• Coverage 0,05 - 30 MHz (9 coil sets 50-100 / 100-200 / 180-430 / 480-960 / 900-2050 kHz / 1,7-4 / 3,5-7,3 / 7-14,4 / 14-30 MHz, bandspread in HAM bands), AM/CW/SSB (BFO);
  double conversion on frequencies above 7 MHz.
  Internal power supply, optional external speaker HRO-60TS, optional crystal calibrator XCU-50-2, optional narrow band-FM adaptor NFM-83-50, optional 650S 6V-vibrator pack and MRR-2 mounting rack.

• Net weight (2.2 lb = 1 kg)
• 38.5 kg / 84 lb 12.8 oz (84.802 lb)

• Price in first year of sale
• 484.00 $

• Source of data
• Communications Receivers

• Mentioned in
• Shortwave Receivers - Past & Present (3rd ed.) (3rd ed., p. 293)

• Author
• Model page created by a member from A. 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)