| GENERAL | 
| Type: | VLF/HF/VHF receiver | 
| Frequency range: | 0.48-35 MHz /Early version) 0.05-54 MHz (Later version)
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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: | ? W | 
| Antenna impedance / connector: | 50-300 ohm / ? | 
| Dimensions (W*H*D): | Cabinet version: 502*257*419 mm (19.75*10.13*16.5") Rack  version: 483*267*447 mm (19*10.5*17.6")
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| Weight: | 38.5 Kg (85 lb) | 
| Other features: |  | 
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| RECEIVER SECTION | 
| Receiver system: | Single conversion superheterodyne (Below 7 MHz) IF: 455 KHz
 Double conversion superheterodyne (Above 7 MHz)
 1st IF: 2.01 MHz
 2nd IF: 455 KHz
 
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| Sensitivity: | 2-30 MHz <1.7 uV (No reference)
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| 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, 1952-1964 (Discontinued) | 
| Additional info: | 15 tubes. New price 1952 in the US: $483.50 (Without speaker)
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| Related documents: |  | 
| Modifications and fixes: |  | 
| Reviews: |  | 
| Options / Accessories: | 
| 650S HRO-60TS
 NFM-83-50
 SOJ-3
 XCU-60-2
 | 6 VDC power supply Matching speaker
 FM unit
 Select-O-Ject
 Calibrator
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