| GENERAL | 
| Type: | VLF/HF/VHF receiver | 
| Frequency range: | 0.05-0.43 / 0.48-35 MHz By plug-in coils
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| Tuning steps: | Analog / continuous | 
| Frequency stability: | ? ppm | 
| Mode: | AM / CW (FM option) | 
| Channels / memory management: | None | 
| Power supply: | Mains: 115 / 230 VAC | 
| Current drain / power consumption: | Max 100 W | 
| Antenna impedance / connector: | 50-200 ohm / Screw terminals | 
| Dimensions (W*H*D): | 501*257*420 mm (19.75*10.12*16.5") | 
| Weight: | 38 Kg (83.78 lb) | 
| Other features: | Bandspread coil drawers. Crystal calibrator and selectoject options. | 
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| RECEIVER SECTION | 
| Receiver system: | Single conversion superheterodyne IF: 455 KHz
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| Sensitivity: |  | 
| Selectivity: |  | 
| Image rejection: |  | 
| AF output power / speaker: | 8 W at ?% distortion / No internal speaker | 
| External speaker connector: | 8 and 500 ohm | 
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| MISCELLANEOUS | 
| Manufactured: | USA, 1951-1952 (Discontinued) | 
| Additional info: | Differs from the earlier HRO50 by an extra IF stage and a total of twelve tuned circuits on 455 kHz.
 
 New price 1951 in the US: $384.00
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| Related documents: |  | 
| Modifications and fixes: |  | 
| Reviews: |  | 
| Options / Accessories: | 
| 50TS NFM-50
 | Matching speaker FM unit
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