Panasonic DR-49. Very nice short wave receiver. A special device because of its appearance and its performance. Incredible reception possibilities and wide choice in (fine) tuning. With a built-in speaker and also has a possibility to connect an external speaker. It is also possible to connect a tape recorder or record player. Device has been tested and approved. National Panasonic DR-49 (RF-4900LBS). SPECIFICATIONS Type: HF/VHF receiver. Frequency range: 0.145-31 MHz / 88-108 MHz Tuning steps: Continuous. Mode: AM/SSB/WFM. Channels/memory management: Power supply: Mains: 110-125 / 220-240 VAC. 12 VDC external or 8*R20/D cells Antenna impedance/connector: 50 ohms / 1*SO-239 Hi-Z / 2* 75 ohms / 1*? Dual ferrite bar antennas and a telescopic whip. Dimensions (W*H*D): 482*200*354 mm (18.98*7.87*13.94") Weight: 8 kg (17.64 lbs), without batteries. Other features: Blue fluorescent display. RECEIVER SECTION Receiver system: Double conversion superheterodyne (above 3 MHz). 1st IF: 2 MHz 2nd IF: 455 KHz. Single conversion superheterodyne (below 3 MHz). IF: 455 KHz. Sensitivity: AM (10 dB S/N) 0.55-1.6 MHz: 60 uV. 5-30 MHz: 1.1-1.4 uV SSB (10 dB S/N) 5-30 MHz: 0.6-1 uV. Selectivity: Image rejection: External speaker connector: Manufactured: Japan, 1979-1983 (Discontinued).