• Año
  • 1944/1945 ?
  • Categoría
  • Receptor profesional (puede incluir bandas de aficionados)
  • Radiomuseum.org ID
  • 86526
    • alternative name: National Toy Co.
    • Brand: Thrillbox

 Especificaciones técnicas

  • Numero de valvulas
  • 9
  • Principio principal
  • Superheterodino con paso previo de RF; ZF/IF 456 kHz; 2 Etapas de AF
  • Número de circuitos sintonía
  • 11 Circuíto(s) AM
  • Gama de ondas
  • OM, OL y más de dos OC
  • Tensión de funcionamiento
  • Alimentado desde otro equipo o aparato principal. / AC 6.3 & DC 240 Volt
  • Altavoz
  • - Este modelo usa altavoz exterior (1 o más).
  • Potencia de salida
  • 1.5 W (unknown quality)
  • Material
  • Metálico
  • de Radiomuseum.org
  • Modelo: HRO-W - National Company; Cambridge &
  • Forma
  • Boatanchor (militar, profesional >20 kg).
  • Ancho, altura, profundidad
  • 440 x 220 x 300 mm / 17.3 x 8.7 x 11.8 inch
  • Anotaciones
  • Tropicalized model HRO Var. 5, built for US Signal Corps.

    Coverage: 50 kHz - 30 MHz (9 ganged 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, no bandspread in these coils available).

    Modes AM / CW/SSB (BFO).

    The 0 – 500 epicyclic readout dial allows for continuous analog tuning while digitally indicating incremental progress over a range of ten full turns of the large tuning knob that tunes with velvet smoothness. Ten times the circumference of the dial is nearly 4 meters on a normal dial scale, which delivers great frequency resolution. The dial is not calibrated to directly indicate a frequency but a frequency calibration chart is necessary to determine the correct operation frequency.

    Tropicalized HRO model Var. 5 , knobs with metal skirts (selectivity control in right upper corner also with metal skirt), black laquered micrometer dial and round S-meter, on the coil sets on the right a printed chart to register calls / frequencies of specific stations;
    similar to HRO-W (tropicalised) set, built to U.S. Signal Corps specifications.

    External "dog house" type power supply : PSU 697 (filaments 6.3 V AC, B+ 240 V DC) used as standard.

  • Peso neto
  • 14.5 kg / 31 lb 15 oz (31.938 lb)
  • Autor
  • Modelo creado por Martin Bösch. Ver en "Modificar Ficha" los participantes posteriores.

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