Headphones '' TA-4 ''.
Headphones, headphones, headsets ...Headphones "TA-4" were produced presumably since 1957 by the Tula plant "Oktava". Telephones are designed to work in special communication equipment, as well as for the needs of radio amateurs. They were produced in 2 versions: high-resistance, 2200 Ohm resistance and low-resistance, 65 Ohm resistance. Technical characteristics: The range of reproducible sound frequencies is 300 ... 3000 Hz. The dimensions of the phones are 190x175 mm. Weight with cord, 0.27 kg.
