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HRO-M

HRO-M; National Company; (ID = 676320) Commercial Re
 
HRO-M; National Company; (ID = 676321) Commercial Re
 
HRO-M; National Company; (ID = 676322) Commercial Re
 
HRO-M; National Company; (ID = 676323) Commercial Re
 
HRO-M; National Company; (ID = 676324) Commercial Re
HRO-M; National Company; (ID = 1163959) Commercial Re HRO-M; National Company; (ID = 1911980) Commercial Re
HRO-M; National Company; (ID = 1986152) Commercial Re HRO-M; National Company; (ID = 1986153) Commercial Re
HRO-M; National Company; (ID = 1986154) Commercial Re HRO-M; National Company; (ID = 1986155) Commercial Re
HRO-M; National Company; (ID = 1986156) Commercial Re HRO-M; National Company; (ID = 1986161) Commercial Re
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HRO-M; National Company; (ID = 1163959) Commercial Re
National Company;: HRO-M [Commercial Re] ID = 1163959 800x443
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For model HRO-M, National Company; Cambridge & Malden (MA):
Radiowelt 3/89
 
País:  Estados Unidos
Fabricante / Marca:  National Company; Cambridge & Malden (MA)
alternative name
 
National Toy Co.
Brand
Thrillbox
Año: 1944/1945 Categoría: Receptor profesional (puede incluir bandas de aficionados)
Válvulas 9: 6D6 6D6 6C6 6C6 6D6 6D6 6B7 42 6C6
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
Especialidades
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)
de Radiomuseum.org Modelo: HRO-M - National Company; Cambridge &
Material Metálico
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

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.

HRO model Var. 5 with all wave coil sets without bandspread (only one printed calibration chart on coil sets), knobs with metal skirts (selectivity control in right upper corner also with metal skirt), black laquered micrometer dial and round S-meter.

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)
Ext. procedencia de los datos Ernst Erb
Procedencia de los datos Communications Receivers
Referencia esquema Rider's Perpetual, Volume 17 = 1948 and before


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