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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
Altre immagini: scorri con la barra rossa.
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
 
Paese:  USA (Stati Uniti d'America)
Produttore / Marca:  National Company; Cambridge & Malden (MA)
alternative name
 
National Toy Co.
Brand
Thrillbox
Anno: 1944/1945 Categoria: Ricevitore professionale (può includere bande amatoriali)
Valvole 9: 6D6 6D6 6C6 6C6 6D6 6D6 6B7 42 6C6
Principio generale Supereterodina con stadio RF; ZF/IF 456 kHz; 2 Stadi BF
N. di circuiti accordati 11 Circuiti Mod. Amp. (AM)
Gamme d'onda Onde medie (OM), lunghe (OL) e più di 2 gamme di onde corte (>2 x OC).
Particolarità
Tensioni di funzionamento Fornita mediante altra unità o unità principale. / AC 6.3 & DC 240 Volt
Altoparlante - Questo apparecchio richiede altoparlante/i esterno/i.
Potenza d'uscita 1.5 W (qualità ignota)
Radiomuseum.org Modello: HRO-M - National Company; Cambridge &
Materiali Mobile di metallo
Forma Boatanchor (pesante apparecchio militare o commerciale, > 20 kg)
Dimensioni (LxAxP) 440 x 220 x 300 mm / 17.3 x 8.7 x 11.8 inch
Annotazioni

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 netto 14.5 kg / 31 lb 15 oz (31.938 lb)
Fonte esterna dei dati Ernst Erb
Fonte dei dati Communications Receivers
Riferimenti schemi Rider's Perpetual, Volume 17 = 1948 and before


Elenco delle radio e altri apparecchi della National Company; Cambridge & Malden (MA)
In questo link sono elencati 430 modelli, di cui 275 con immagini e 163 con schemi.





  
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