FIELD: electric engineering. SUBSTANCE: two identical receiving-transmitting channels are introduced additionally into emergency battery-free phone set. Linear amplifier 5, provided with power supply 6 on the base of noise/electric energy converter, is connected into any channel. The converter is made in form of electrodynamic converter 7, provided with horn, and rectifier 8, connected in series, the rectifier is provided with ripple filter 9. Device permits to use the amplifier for emergency battery-free phone set, energizing by voltage (D. C. . ) from power supply, which transforms acoustic energy of noises in the room into electric energy. EFFECT: application of amplifier. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR POWER SUPPLY OF EMERGENCY COMMUNICATION UNIT | 1991 |
|
RU2063101C1 |
| HANDSET | 1994 |
|
RU2090007C1 |
| SHIPBOARD INTERIOR EMERGENCY COMMUNICATION SYSTEM | 1994 |
|
RU2108671C1 |
| SYSTEM FOR EMERGENCY COMMUNICATION | 1992 |
|
RU2037972C1 |
| DEVICE FOR SHIP LOUDSPEAKER COMMUNICATION AND RELAYING | 1996 |
|
RU2131168C1 |
| DEVICE FOR POWER SUPPLY OF EMERGENCY PHONE COMMUNICATION EQUIPMENT | 1991 |
|
RU2087997C1 |
| CONFERENCE CALL DEVICE WHICH IS CONTROLLED BY VOICE | 1993 |
|
RU2097934C1 |
| SHIP'S INTERIOR EMERGENCY RADIO COMMUNICATION SYSTEM | 1990 |
|
SU1840238A1 |
| SHIPBOARD EMERGENCY RADIO COMMUNICATION SYSTEM | 2002 |
|
RU2230431C2 |
| METHOD FOR INDIVIDUAL CORRECTION OF PARAMETERS OF TECHNICAL CHANNELS FOR TRANSMISSION OF EDUCATIONAL CONTENT PERCEIVED BY AUDITORY ORGANS | 2020 |
|
RU2752755C1 |
