Portable radio '' Channel Master 6503 ''.

Portable radios and receivers.ForeignThe Channel Master 6503 portable radio has been produced since 1959 by two companies, the Japanese Sony and the American Channel Master. Superheterodyne 5 transistors. AM range 540 ... 1600 kHz. IF 455 kHz. Powered by a 9 volt battery. Due to the small number of transistors, the receiver had a low sensitivity (~ 5 mV / m) and sufficient volume in a small radius from the radio station. Selectivity also did not exceed 12 dB. Dimensions of the model are 67x108x32 mm.