Ðåêëàìà íà ñàéòå | Ïîìîùü ñàéòó   English version | Free likes 
KAZUS.RU - Ýëåêòðîííûé ïîðòàë. Ïðèíöèïèàëüíûå ñõåìû, Datasheets, Ôîðóì ïî ýëåêòðîíèêå

eBooks archive

    
Ïðèìåð: Infrared control system


07/2024 06/2024 05/2024 04/2024 03/2024 02/2024 01/2024 12/2023 11/2023 10/2023 09/2023 08/2023 07/2023 06/2023 05/2023 04/2023 03/2023 02/2023 01/2023 12/2022 11/2022 10/2022 09/2022 08/2022 07/2022 06/2022 05/2022 04/2022 03/2022 02/2022 01/2022 12/2021 11/2021 10/2021 09/2021 08/2021 07/2021 06/2021 05/2021 04/2021 03/2021 02/2021 01/2021 12/2020 11/2020 10/2020 09/2020 08/2020 07/2020 06/2020 05/2020 04/2020 03/2020 02/2020 01/2020 12/2019 11/2019 10/2019 09/2019 08/2019 07/2019 06/2019 05/2019 04/2019 03/2019 02/2019 01/2019 12/2018 11/2018 10/2018 09/2018 08/2018 07/2018 06/2018 05/2018 04/2018 03/2018 02/2018 01/2018 12/2017 11/2017 10/2017 09/2017 08/2017 07/2017 06/2017 05/2017 04/2017 03/2017 02/2017 01/2017 12/2016 11/2016 10/2016 09/2016 08/2016 07/2016 06/2016 05/2016 04/2016 03/2016 02/2016 01/2016 12/2015 11/2015 10/2015 09/2015 08/2015 07/2015 06/2015 05/2015 04/2015 03/2015 02/2015 01/2015 12/2014 11/2014 10/2014 09/2014 08/2014 07/2014 06/2014 05/2014 04/2014 03/2014 02/2014 01/2014 12/2013 11/2013 10/2013 09/2013 08/2013 07/2013 06/2013 05/2013 04/2013 03/2013 02/2013 01/2013 12/2012 11/2012 10/2012 09/2012 08/2012 07/2012 06/2012 05/2012 04/2012 03/2012 02/2012 01/2012 12/2011 11/2011 10/2011 09/2011 08/2011 07/2011 06/2011 05/2011 04/2011 03/2011 02/2011 01/2011 12/2010 11/2010 10/2010 09/2010 08/2010 07/2010 06/2010 05/2010 04/2010 03/2010 02/2010 01/2010 12/2009 11/2009 10/2009 09/2009 08/2009 07/2009 06/2009 05/2009 04/2009 03/2009 02/2009 01/2009 12/2008 11/2008 10/2008 09/2008 08/2008 07/2008 06/2008 05/2008 04/2008 03/2008 02/2008 01/2008 12/2007 11/2007 10/2007 09/2007 08/2007 07/2007 06/2007 05/2007 04/2007 03/2007 02/2007 01/2007 12/2006 11/2006 10/2006 09/2006 08/2006 07/2006 06/2006 05/2006 04/2006 03/2006 02/2006 01/2006 12/2005 11/2005 10/2005

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] 16 [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62]


ET312 electro stimulator
DT-838 ÑÑÐÐÐ
Cushcraft ARX-2b
ATX POWER SUPPLY Shen Zhou SZ-250L
FUNAI TV 2000 MK 2
DVD ÐÐÐÐÐÐÐ SHARP DV-SV90
DVD ÐÐÐÐÐ BBK
Dell E551
Kenwood kdc-20245
DVD PHILIPS 64237
AKAI CN-G215D
ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ ÃÂÃÂÃÂÃÂÃÂ TDA-7454
Commodore 64
GOLD STAR CF-20E60B chassis MC-41B
Erisson 20ls01
Excalibur AL-1000atvÐÐÐÐÐ ÐÐÐÐÐÐÐÐÐÐÐÐ- ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ
ISO-450PP4S
Funaj TV-2100A MK10
Cordless phone schematics PANASONIC F 100
DAEWOO AKF-9625WY-RE
BRAUN 1507
AEG CS MP 530 IRÑÐÐÑÐÑÑ ÐÐÑÐÐÐÑÐРиÐÑÑÑÑÐÑиÑ
ARS Back-UPS 1500
ÐÑиÐÑиÐиÐÐÑÐÐÑ ÑÐÐÐÑÑиÑÐÑÐÐÑ ÑÑÐÐÐ Indesit WITL 86
CDI Ignition
HYUNDAI V560 ÐÐÐÐÐ ÐÐÐÐÐÐÐÐÐ
KENWOOD KRF-V4550D
ÐÐÐÐÐ ÐÐÐÐÐÐÑÐÐÐÐ GSM
Cordless phone schematics PANASONIC KX-TÐÐÐ162
BE3B CLASSIS
9to15 pin vga cable
ELEKTA ekd
ÑÑÐÐÐ ÐÑÐиРPANASONIC RX - CT840
CNFW2 BOSCH
LCD TVmonitor
ÑÑÐÐÐ ÐÐÐÐÑÐÑÐÑÐ ÐÐ-100 Ð2
Electro Harmonix
DT-838 digital multimeter èíñòðóêöèÿ ïî ýêñïëóàòàöèè
TV supply schematics AIWA VXT2020
IK ÐÐÐÑÐÐÐÐÑÐ ÐÐ PIC
ñõåìà Âûïðÿìèòåëüíî çàðÿäíî-âîññòàíîâèòåëüíîãî óñòðîéñòâà ÂÇÂÓ ÎÒÐÅ-6Ï-126
Infrared control systemñõåìà òåëåâèçîðà LG CF-20D16 circuit
Simson s51 Åëåêòðî ñõåìà
ÑÑÐÐÐ ÑÐÐÐÐиÐÐÑÐ samsung ck-5314AT
LG TCC-5610 ñõåìà
Ïðèíöèïèàëüíàÿ ñõåìà Back-UPS RS 800 APC
Elenberg MX-332 иÐÑÑÑÑÐÑиÑ
IPPON Back Power Pro 500 ÐÐÐÐÐÐÐÐÐÐ MAIN-87XXMODULE 098-17138-01-S2
Hyundai H-HAS6003 ÐÐÐÐÐÐÐÐÐÐ
ÐÑÐиÑÐ 106 ÑÑÐÑÐÐ ÑÑÐÐÐ ÑÐÐÑÐÑÑ ÐÐÑÐÐÐÑÐÐ
DAEWOO DMQ-2127 ÐÐÐÐÐÐÐÐÐÐ
ñõåìà òðåõïðîãðàììíîãî ïðè¸ìíèêà àëüòàèð ïò 204
òåëåâèçîð PANASONIC TC-21FS10T
Ericsson DECT 230
HORIZONT 21A21 ÐÐÐÐÐÐÐÐÐÐ ÐÐÐÐ ÐÐ
INDESIT WT80CSI WRP 00205 LB2000 VNI-ST
AV receiver
AVR Signal Generator
ÑÑÐÐÐ ÐÐÐÐÐÑÑÐÐÐ¸Ñ Sheriff PWM-200 ÐÐ ÐÐÐ 21099
AVR 500d ÐÐÐÐÐ
Ñõåìà óêì-ñ1ï óõë4
ðò-049-à ñõåìà ÐÅËÅ ÒÅÌÏÅÐÀÒÓÐÛ
MANUAL SB-M500
Audio Akai AX-M430
ÑÑÐÐÐ Samsung CS-15M16MQQ
FIAT SCUDO
MCD-1003
ÐÐÑÐÐÐÐ Ð 202-1 ÐÐÐÐÐ ÐÐÐÐÐÐÐÐÐÐÐÐÐÐ
ÐÑÐÐÐ ÑÐÐÐÐиÐÐÑÐ daewoo dmq-2036
Àäàïòåð ÀÒÑ
PANASONIC TX29P90T
Linkworld 200W 250W 300W
MICRO-STAR INTERNATIONAL CO LTD P4M 266-8233
Ariston ATD-104 à¸à¸à¸à¸à¸
ñõåìà îò 35àñ-216
Erisson 2105 ÐÐÐÐÐÐÐÐÐÐ
Phone schematics PANASONIC KX-T2460
CANON IP1800
circuit cdr-8435
Cordless phone schematics PANASONIC 26920r
Blaupunkt gta4100
ÑÑÐÐÐ ÐÐÑÑÐÐÐÐ ÑÑÑÑÐÐÐÐÑÑ bosch d 70745
Daewoo model xl - 125 ÑÑÐÐÐ
CMOS ALU
LED LAMP 220V
JVC 2951 QBE ÑÐÑÐиÑÐÑÐ ÑÐÐиÐ
ÑÑÐÐÐ ÐÐÐÐÐ ÐиÑÐÐÐ¸Ñ Canon AC ADAPTER K30290
12220 power inverter schematic diagrm
DAEWOO AMI - 726LW
INDESIT WiSL 86
LAD6019AB5 circuit
FIRST AUSTRIA Radio ÐÐÐÐÐ ÐÑÐÐÐÐÐÐÐÐÑÐÑ
Small Power Amplifier 8W 8ÐÐ with TDA 2030
High Frequency Induction Heatihg
GP Power bank
Epson Stilus CX4300 ÑÑÐÐÐ
Akai DDV 805
G8A-201-05 OMRON1322d2kawasaki
AIWA f450
Extra-Pic
Horizont 51CTV-6551-3 ÑÐÐÐÐÑ
Digital Clamp Meter DT- 266 ñõåìà ýëåêòðè÷åñêàÿ
Gold Star CF-20E20B
MICROPHONE WM-308
MGE PULSAR EXTREME 1000C
GoldStar ckt2180
UPS CAC POWER
KXT-4500
digital multimeter DT9208A ñõåìà ýëåêòðîííàÿ
MOSFET POWER AMPLIFIER 240 WATT
ÑÑÐÐÐ ÐÐ ÐÐÑÐÐÐÐÐиÑÐÐÑ Pioneer DEH-2950MP
IÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ 12V- 220V 50Hz 100W
ALINCO 510-X ÐÐÐÐÐÐÐÐÐÐ
DT-838 Digital multimeter
JK-6201
HITACHI VM-3380
ñõåìà óñèëèòåëü ÑÃÓ 60
CS21D8R samsung circuit
Golden LW
Color LCD videoprojector CPJ-100
BTV-700 ÑÑÐÐÐ
ATX TK-925TX
ÑÑÐÐÐ ÑÐÐÐÑÐÐÐ ÐÐÐÐÐ 302
Cordless phone schematics PANASONIC KX-TS2350
ups power ÐÐÐÐÐÐ guard1200ap
DEFENDER MIC-155
Aiwa NSX-220
ñõåìà ïðîòîí-306ñ
ïðåäïóñêîâîå çàðÿäíîå óñòðîéñòâî êåäð àâòî 10 ñõåìà
Daewoo 531
DVD ïðîèãðûâàòåëü
MAX KT
FUNAI TVR-2000a MK7
LED à¸à¸à¸à¸à¸à¸
Hitachi CL2864TA ÐÑÐÐÐÐÐÐÐÐÑÐ ÐÐÐÐ
Back verso 600
ìóëüòèìåòð DT9208A ñõåìà
A 3m 100 MHz small bug
FET audio mixer
Horizont 659
ÐÐÐÐ ÑÑÐ-101
Gold Star CF-21D-70B
Goldstar cft 9742
HT9115D
GRUNDIG GR2150
CD player Panasonic SL-SX420
Life in a vacuum 6Ð42Ð6Ð45Ð 4Ð1Ð
ImTOO 3GP Video Converter R
IPPON Smart Winner 1000
Loewe concept 700
ìóëüòèìåòð DT9208A
ñõåìà ðàäèîòåëåôîíà Panasonic KX-TC1205RUW
AUDI A6 ÐÑиÐÑиÐиÐÐÑÐÐÑ ÑÑÐÐÐ
DVD samsung HT-DS 400
ñõåìà ýëåêòðîïðèâîäà øâåéíîé ìàøèíêè ×àéêà 134À
HYUNDAI H-MS1113 circuit
Codless phone
ÐÐÐÐÐÐÐ panasonic kx tc1205RUB
Logitech Z-623
Blaupunkt CD 32
Indesit wisl105x
FM Radio
AI Direct Drive
AIWA TVC142KE
Power supply TV Panasonic tc2150rs
Ippon BACK POWER 600
Harman AVR-80
ATX RPS 300ÐÐÐÐÐÐÐÐÐÐ
PIONEER DEH-3050UB
Canon MP 150
ÐÑÐÐÐ ÐÐÐÐÐ ÑÐÑÐÐÐÐÐÐ¸Ñ Indesit wg 1031 tx
JVC RC-660
DAEWOO KR21
Elekta sxema Renault Espace
FUNAI 2000MK2
Infrared control system PANASONIC KX-TC1484B RADIOTELEPHONE
HITACHI CS 2506 ÐÐÐÑÐÐÐÑÐÐÑÐÐÐÐÐÐ ÐÐÐÐÐ ÐÑÐÐÐÐÐÐÐÐÐÐ ÐÐÐÐÐ ÐÐÑÐÐÐÐÑÐ
BAROMETER
MEDION Model MD-4366
flyback power supply circuit
KENWOOD KRC-178
ÐÑиÐÑиÐиÐÐÑÐÐÑ ÑÑÐÐÐ jvc kd-r47
AUDIO PANASONIC RX-CT840
DIGITAL DCP-3010
ÐÑÐÐÐ ÑÐÐÐÐиÐÐÑÐ LG MODEL NO CF-21D30
ortp-760 power supply samsung htx 20
ÑÑÐÐÐ ÐÐÐÑÑÐÐÐ¸Ñ ÐиÐÑÐÑÑÐÐÑ TDA 1557Q
Chevrolet LacettiÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ ÐÐÐÐÐ
DUAL ct7060
HITACHI CML171SXW
DVD DS
ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ ÐÐÐÐÐÐÐÐÐÐÐÐÐÐ ÐÐÐÐÐ Panasonic KX-TCD540
MAGICAR M 7000 ÐÐÐÐÐ ÐÐÑÐÐÐÐÐÑÐÐÐÐÑÐ
Card reeader com9 PCMCIA
ÐÐÐÐÑÑиÑÐÑÐÐÑ ÑÑÐÐÐ ODEON AV-100
Ñõåìà óñòðîéñòâî ïèòàþùåå ìíîãîöåëåâîãî íàçíà÷åíèÿ Êàñêàä 1 ÒÓ 16-579021-77
ÐÑиÐÑиÐиÐÐÑÐÐÑ ÑÑÐÐÐ ÐÑÐÐÐ 2000-MK10
ñõåìà ïîäêëþ÷åíèå ëþìèíåñöåíòíîé ëàìïû áåç äðîññåëÿ
Daewoo HC-42
DVD-503
DREAMCAST CONTROLLER ON PC
GoldStar 21D10X
power supply schematics
ARC-200ET ÐÐÐÐÐ ÐÐÐÐÐÐÐÐÐÐÐÐÐÐ ÐÐÐÐÐÐÐÐÐ ÐÐÐÐÐÐÐ
ãåíåðàòîð âûñîêî÷à÷ñòîòíûõ ñèãíàëîâ ÃÌÂ
Daewoo kr2131ÐÐ
DAEWOO ST
BMW BUSINESS RDS
Daewoo akf0315rc
GSM Router
Kemppi Master Tig ÐÑиÐÑиÐиÐÐÑÐÐÐ ÑÑÐÐÑ
Delux ATX-300W ÐÐÐÐÐ
sharp gf 560 ÑÑÐÐÐ
Hyundai H-DVD5000
MAG 500 monitor
DVD Panasonic DVD-K325Panasonic K325EE
ñõåìà ñàáâóôåðà Kicx ICQ-300BA
ÑÑÐÐÐ panasonic rx-fs430
Humax VA-ACE ÐÑиÐÑиÐиÐÐÑÐÐÑ ÑÑÐÐÐ
Cordless Phone Sony
Composite video
Intel D945PLRN
ÐÑиÐÑиÐиÐÐÑÐÐÑ ÑÑÐÐÐ PC-to-TV converter AVerMedia AVerKey Lite
JVC AV-2104EE ÐÐÐÐÑ SKF-1349-EH2-112
CÐÐÐÐ ÐÐÐÐÐÐÐÐÐÐÐ Samsung CK 5314X
Bluetooth USB JM-800 c ÐÐÐÐÐÐÐ
ãëþêîìíòð circuit
CTV- 21004
LED Driver HZP-KTSWP-87A12
Ñõåìà HY3010E
ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ ac power adapter 0957-2146 circuit
ñõåìà tv kv sw292m91k
Switching power supply M-ATX-350W ïðèíöèïèàëüíàÿ ñõåìà
ÈÌÏÓËÜÑÍÛÉ ÁËÎÊ AC-8E
GoldStar NF21GA65
ðåìîíò èíâåðòîðà EADP-43AF
KENWOOD KAC-6200
HONDA ACCORD
Golden 250W-B
Acer AL1716F ÐÑÐÐÐ ÑÑÐÐÐ
Power Circuit Diagram for mobile phones
M890F Multimeter Mastech
ÑÑÐÐÐ ÐÐÐÑÑÐÐÐ¸Ñ STR W6753
ÐÑиÐÑиÐиÐÐÑÐÐÑ ÑÑÐÐÐ ÑÐÐÐÐиÐÐÑÐ JVC C-2155 EM
ÑÑÐÐÐ ÐÐ ÑÑиÐиÑÐÐÑ Akai AM-A301
LG LAC M 1500
FLASH-ÐÐÐÐÐ
BAND pass
camera sony DCR-HC17E
GOLDSTAR 251CF
AKAI-vs-p150edg
ñõåìà òåëåâèçîðà Ñàìñóíã CS-15K8MJQ
ñòàðûå íåìåöêèå ëàìïîâûå ðàäèîïðèåìíèêè
Schematic E59670
Goldstar CKT-4905 ðóêîâîäñòâî ïîëüçîâàòåëÿ
Fino 20 circuit
CASIO tv-880N
Indesit wil 82 x
AKAI CT-G295D
0-250 power
ÐÑÐÐÐ SAMSUNG TVP-5050
ÑÑÐÐÐ ÑÐÐÐÐиÐÐÑÐ sitronics stv-2121
CLONEPAC
Canon MP-210
Phone schematic diagram Panasonic KX-TS2350
DAEWOO DMQ2056 ÐÐÐÐÐÐÐÐÐÐÐÐ C-50N
LG fletron 710 PH
DVD-LA95 nojee000006
äâèãàòåëü wa-10050ten2 ñõåìà ïîäêëþ÷åíèÿ íà 220 âîëüò
ÐÑÐÐÐ Ð-4312
ERISSON 1465
Eurosky DVB 8004 SUPER
GSM ÐÑÑÐÐÐ
ÑÕÅÌÀ ÈÌÏÓËÜÑÍÎÃÎ ÁËÎÊÀ ÏÈÒÀÍÈß DVD XORO HSD202P
TV power supply schematics ORION 20AH
ñõåìà MYSTERY MAR818U
EEPROM SEEPROM for tv monitors videotaperecorders SANYO
power suplly
power supply schematics 153
DELTA ELECTRONICSINC EADP-C002-1 Ð ÐÐÐÐÐÐÐÐÐÐÐ ÐÐÐÐÐÐÐÐ INDESIT
Codegen 300w atx203p4 model300x CG-33
HIGH POWER HPC-430-P12S
JVC C1480m manual
IRDA ÐÐ PL2303HX
Erisson 15LS01
Audio-video
Cordless phone Schematics and manual Panasonic KXT9500
ÐиÐÑÐÐ ÐÐ-201 ÑÑÐÐÐ
Íîâîñòè
[06/02/2019] Êîíôåðåíöèÿ â ÌÃÒÓ èì. Áàóìàíà «Òåõíîëîãèè ðàçðàáîòêè è îòëàäêè ñëîæíûõ òåõíè÷åñêèõ ñèñòåì» 2019
[09/05/2018] Ãðàíäèîçíàÿ ìàéñêàÿ ðàñïðîäàæà íà Gearbest!
[16/05/2017] Ñ 15 ïî 17 ìàÿ â ìàãàçèíå Gearbest ïðîõîäèò ãðàíäèîçíûé ôëýøñåéë
[10/05/2017] Òàê ÷òî æå òàêîå Ñïèííåð?
[05/12/2016] Íîâûé Ãîä è Ðîæäåñòâî ñ GearBest!
×èòàòü âñå íîâîñòè >>
Êàòàëîã ñõåì
PDA - èíòåðôåéñû è ñõåìû Àâòîçâóê Àâòîìîáèëü Àóäèî Áåçîïàñíîñòü Áûòîâàÿ ýëåêòðîíèêà Âèäåî Âèäåîêàìåðû Âûñîêîâîëüòíûå Ãåíåðàòîðû Èãðû, ðàçâëå÷åíèÿ Èçìåðåíèÿ Èíòåðôåéñû Êîììóòàöèÿ Êîìïüþòåð Ìåäèöèíà Ìîäåëèðîâàíèå/ Ðîáîòû Ìóçûêà Ïåðåäàò÷èêè Ïèòàíèå Ïîëó÷åíèå è íàêîïëåíèå äàííûõ Ïðåäóñèëèòåëè Ðàäèî Ðàçíîå Ðåìîíò Ðåòðî Ñâåò/Ëàçåð/ Câåòîäèîäû/IR Ñåòè Ñîëíå÷íàÿ ýíåðãèÿ Ñîòîâàÿ ñâÿçü ÒÂ-Ìîíèòîðû Òåëåôîíèÿ Óïðàâëåíèå äâèãàòåëÿìè Ôèëüòðû Öèôðîâûå/ Ìèêðîêîíòðîëëåðû Electronic circuits Datasheets Êàòàëîã ñõåì Ïðèíöèïèàëüíûå ñõåìû
Ìicrocontrollers
Drivers for LED dispays Data Logger for iButton LCD-module with MCS-51 Thermometers Dallas Semiconductor Work with EEPROM 24LCxx MSP430 with Flash-memory ATmega169 and AVR-Baterfly CAN interface USB interface
Èçáðàííûå ñõåìû
Arduino Àóäèî  Âàøó ìàñòåðñêóþ Âèäåî Äëÿ àâòîìîáèëÿ Äëÿ äîìà è áûòà Äëÿ íà÷èíàþùèõ Çàðÿäíûå óñòðîéñòâà Èçìåðèòåëüíûå ïðèáîðû Èñòî÷íèêè ïèòàíèÿ Êîìïüþòåð Ìåäèöèíà è çäîðîâüå Ìèêðîêîíòðîëëåðû Ìóçûêàíòàì Îïàñíûå, íî èíòåðåñíûå êîíñòðóêöèè Îõðàííûå óñòðîéñòâà Ïðîãðàììàòîðû Ðàäèî è ñâÿçü Ðàäèîóïðàâëåíèå ìîäåëÿìè Ñâåòîâûå ýôôåêòû Ñâÿçü ïî ïðîâîäàì è íå òîëüêî... Òåëåâèäåíèå Òåëåôîíèÿ Óçëû öèôðîâîé ýëåêòðîíèêè Ôîòîòåõíèêà Øïèîíñêàÿ òåõíèêà
Ïîëüçîâàòåëè
Ñîçäàíî àêêàóíòîâ:
Ñåãîäíÿ: 0
Â÷åðà: 0
Âñåãî: 146244

Ñòàòèñòèêà:

 © 2003—2024 «Ýëåêòðîííûé ïîðòàë»Îáð@òíàÿ ñâÿçü