Portable radio receiver `` Koyo-403 ''.

Portable radios and receivers.ForeignThe portable radio receiver "Koyo-403" has been produced since 1963 by the Japanese company "Koyo Denki". Superheterodyne on six transistors. MW range - 525 ... 1620 kHz. IF - 455 kHz. AGC. Powered by 4 AA cells. Maximum output power 300 mW. The diameter of the loudspeaker is 7 cm. The range of reproducible sound frequencies is 300 ... 4000 Hz. Dimensions of the model 160 x 80 x 40 mm. Weight with batteries 400 grams. Since 1964, the "Koyo-403" radio has been produced with a slightly different front panel design, as in the main photo.