relay system using momentary switches

Why didn't you say you were making a display?

I'm a poet and didn't know it.

Now I understand.

He said he was in the 4th post!

Now I feal Dumb.

Not enough coffee this morning. It is about 6:30 am.

Hold off on the switches.

I think we can do this with relays.

Here is a basic circuit we will start with. I made this a couple of years ago.

Here are a couple of Digital switches in the mean time. Something to think about One switch to select up to 10 different Stereos.

http://www.geocities.com/tjacodesign/touch/touch.html

http://www.siliconchip.com.au/cms/A_105741/article.html

i like the last diagram.  where do i get those parts at?  such as the ic2 and the ic1's?

thanks for the help

Did you read the article? The Diagram only showes 4 but you copy the pattern to get up to 10 outputs.

You can get the parts at www.mouser.com or www.digikey.com or www.mcmelectronics.com

yeah, i read that i can do up to 10. i looked at those sites and can not find the ic2 that is like the picture?  what model should i get that will work the best?

thanks for answering all these questions.

I forgot to tell you that trere are many Manufactures and they use Prefixes in front of the Base numbers

Sorry

Also these IC's are static sensitive and you need to follow proper grounding precautions when handling them. Like a grounded Soldering Iron and a Grounded Wrist Band.

4093 CD4K CMOS Logic Quad 2-Input NAND Schmitt Trigger  40 cents each

4017 CMOS Quad D-Type Flip-Flops 48 cents each

2N7000  MOSFETs N-CHANNEL 60V 200mA 13 cents each

78L05 Voltage Regulators 5.0V 0.1A Positive 35 cents

Here is a nice Rack Mount unit

Here is a Less Expensive one.