is there any ic like ic 4066 that switches more than 5 channels?
547359
two 4066's?  Try maxim www.maxim-ic.com, or possibly on semiconductor www.onsemi.com i'm sure there are many multi channel analogue switches - what are you using it for?
521870
This is a networking problem - look up 'Linear Bus', 'Star' or 'Hub', 'Token Ring' and 'Fully Connected Mesh'.\n\nYou need 21 for a fully connected topology, but you could do it with far less.
934598
Try this website http://www.discovercircuits.com they have 1000's of circuits for all different applications
906929
hub:\none broadcast domain\none collision domain\n\nswitch (no VLANs): \none broadcast domain\none collision domain for each port\n\nswitch (with VLANs):\none broadcast domain per VLAN\none collision domain for each port
339913
there are total 8 DMA channels(DMA0 to DMA7).\nexcept DMA4,all other channels are used for i/o devices.\nDMA2 is fixed for floppy drive.\nDMA4 is fixed for cascading from first DMA controller.\nrest are unassigned.
344568
http://www.discovercircuits.com/list.htm
98829
rf modulator.\nhttp://www.radioshack.com/search/index.jsp?kwCatId=&kw=rf%20modulator
222506
Depends on what you mean. If you just want a remote switch you might try using a hacked "wireless doorbell" -- see http://www.wd5gnr.com/rfrem.htm -- although I think Radio Shack no longer sells that particular doorbell, you can find these lots of other places. Might have to experiment some with a different brand.
280807
Get a splitter at RadioShack
371578
I have had the best distance results with the D-Link DI-784 -- it supports both 802.11b and 802.11g, and one of the two should be detectable by your wireless device.\n\nYou should know, however, that if you're talking about cinderblock walls, you don't stand a chance -- they kill the signal completely.
792438
More than you have room for PC's in your house...\n\nThis totally depends on what kind of devices you will have and what protocols are in use. For most places, you communicate via IP. Again, most places have a private class c address, meaning that you can have 254 physical devices on the subnet. Now, devide this by the number of ports per switch (less one port for daisey chaining them) and this will give you the number of switches on your LAN.\n\nSo - too many variables - theoritical limit is millions - pratical is 8 (16 ports each).\n\nIf you are talking hub, then this goes way down due to probability of collisions. Switch eliminates this problem.
383355
I would suggest, if you can still find some, seven segment hexadecimal driver IC's.  They will convert discrete logic bits into the necessary outputs for a seven segment display.\n\nThe chip has unfortunately been discontinued and are a little fun to find now.  You can build up a substitute using logic gates or a FPGA (if you have access to those and the related equipment).\n\nThis site might be helpful...
1044185
Multiplexors, Digital Cross-Connect Systems.
795605
Different in speed. do the 2x1Gig for dual channel purposes..
276785
You might try looking at Deltronix RPS II switch.  I've bought one in the past.  It is like having a wall switch that you control by calling it over the telephone.  I believe the URL is http://www.remotepowerswitch.com
821517
I'm guessing that you're using 802.11b/g?\nIf so, changing the channel on the wireless is a good idea, I'd try moving 3 or 4 channels from where you started.  Most likely, you've got another wireless device trying to use the same channel. (i.e. a wireless phone, or a neighbor's computer network).  Also, you can check for common sources of interference, like microwaves, florescent lights, metal walls in the way...  You're dealing with a radio, so if there's anything that would interfere with signal on a cell phone, or a remote control car, it might interfere with your wifi as well.\n\nIf that doesn't work, or you can't figure out how to change the channel, you can call the company that made the router, and talk to tech support.  That might just be an ordinary configuration error, and even if it's not, they might be able to help (Be polite, and patient, if they seem to be running through a lot of basic stuff, that's where most people make a small slipup).
989097
Some routing software allows such a limit\n\nYou will probably need to have a linux based router though and spend some time configing it