Headphones stereophonic telephones "TPS-1".
Headphones, headphones, headsets ...Head stereophonic telephones "TPS-1" have been produced since the beginning of 1984. Piezoelectric steretelephones "TPS-1" are intended for individual listening to mono and stereophonic programs from stereophonic equipment with nominal output voltage from 5 to 30 V. Thin (10..15 microns) piezoelectric film serves as a radiating element of telephones. Main technical characteristics: Nominal frequency range 20 ... 20,000 Hz. The nominal voltage of the signal source is 30 V. The harmonic distortion in the frequency range 100 ... 2000 Hz is 1%. The sound pressure level at a frequency of 500 Hz with a signal source voltage of 5 V is 94 dB. The electric capacity of each telephone is 0.015 ... 0.065 μF. The weight of the stereo phones is 0.3 kg.
