L'explication/l'anotation:For indemnification of weak and middle hearing losses with flat and êðóòîíèñõîäÿ
ùåé pure tone audiogram.
La description détaillée de marque:Ðàøèðåííîå reproduction of high frequencies. Has the wind-protective input
microphone, the small sizes, is simple and convenient in operation. Ïåðåêëþ÷à
kind òåëü of frequency characteristic, in coincidence with power switch
(O-H-N) and íåîïåðàòèíûé controller of restriction of output level çâóêîâî
ãî of pressure. Microphone and company telephone "Íîóëñ" and company microcircuit "r
òåõíîëîãäæè çèñòåíñ" (U. S. A.). The body is constructed of 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 apparata food the feedback
ùåñòâëÿåòñÿ from one battery of Ä-0, 03 house shall be allowed the application
power supply element of type 675 or similar.
the electroacoustic characteristics
the greatest acoustic strengthening at frequencies:
1000 Hz 55+-4, 5 decibels
1600 Hz 50+-4, 5 decibels
2500 Hz 55+-4, 5 decibels
maximal output noise level 132 decibels
frequency range in case of irregularity
500-5700 Hz 20 decibels
harmonic coefficient 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 |
