Explanation/Annotation:Medium frequency for indemnification of middle hearing losses with horizontal
and ïîëîãîíèñõîäÿùåé of pure tone audiogram.
Detailed model description:Has the wind-protective microphone entry, small sizes. Gender switch
works, in coincidence with power switch (Î-Ò-Ì) and unefficient r
restriction ãóëÿòîð of output level. Microphone and telephone of company "Íîóëñ"
and company microcircuit " òåõíîëîãäæè Ðåçèñòåíñ" (U. S. A.). The body èçîòîâëåí from
specially impact strength nontoxic the company plastic "the Baeyer" (Germany).
the amplifier is fabricated using of surface mount technology
on printed circuit board, having the compensation of printed wires by the gold. The pita
the Nia is carried out from one battery of Ä-0, 03 house shall be allowed first bill of exchange
íåíèå of power supply element type 675 or similar.
electroacoustic characteristics
greatest acoustic strengthening at frequencies:
1000 Hz 65+-4, 5 decibels
1600 Hz 60+-4, 5 decibels
maximal output noise level 132 decibels
frequency range in case of irregularity
350-4500 Hz 20 decibels
harmonic Êîôôèöèåíò at frequencies, not more:
500 Hz 10%
1000 Hz 5%
1600 Hz 5%
consumption current, not more 1, 3 mitotic activities
depth of stepless gain control, no less than 30 decibels
maximal output noise level
in case of work with spark inductor, no less than 110 decibels |
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