# "Delaying" a 12 volt signal?

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• 10-19-2004, 09:45 AM
kiltjim
Throttle back there gentleman. The RC network works for what I'm trying to do. Its all very informational, but I'm working with point to point soldering here. This most of this stuff would work for someone working on a car scale.

Thank you for all of you help though. I'll keep all this stuff in mind.
• 10-19-2004, 05:02 PM
justICE
Quote:

Originally Posted by kiltjim
(A huge length of wire won't work...so don't suggest it...)

LOL. 186,000 miles per second. 10 second delay. 1,860,000 miles of wire. 13.49 for 35 feet is 39cents a foot. 1,860,000 miles is 9,820,800,000 feet. Thats a grand total of 3.8 billion dollars. The length would be long enough to go around the earth 77 times. Maybe they will give you a discount since you are buying in bulk.
• 10-19-2004, 05:52 PM
XxAndyxX
Quote:

Originally Posted by justICE
LOL. 186,000 miles per second. 10 second delay. 1,860,000 miles of wire. 13.49 for 35 feet is 39cents a foot. 1,860,000 miles is 9,820,800,000 feet. Thats a grand total of 3.8 billion dollars. The length would be long enough to go around the earth 77 times. Maybe they will give you a discount since you are buying in bulk.

You have quite a bit of time on your hands don't ya? lol
• 10-19-2004, 08:41 PM
mushin
Quote:

Originally Posted by kiltjim
The 555 timer would work in one shot mode, but not for the size I'm working with.

I didn't mean draw the current from the 555, obviously - couple it with a FET. But whichever.

re: bajillion feet of wire delay 'circuit' :lol:
You forgot to consider that the wire is going to need to be some horrendously negative gauge wire to prevent voltage drop over that distance. Going to cost much more than \$3 billion :)

In a parallel thought: they (always the mysterious 'they') are able to make exotic materials that slows light to a crawl. I wonder if the same is possible for electrons?
• 10-19-2004, 08:53 PM
kiltjim
Quote:

Originally Posted by justICE
Maybe they will give you a discount since you are buying in bulk.

I work there. I would get a discount. But I don't think that much wire is gonna be able to surface mounted.

Quote:

Originally Posted by mushin
In a parallel thought: they (always the mysterious 'they') are able to make exotic materials that slows light to a crawl. I wonder if the same is possible for electrons?

I read this about 3 months ago in one of my many physics magazines. They have managed to 'slow' light in essence. They (and in this case its not mysterious I think they were British) somehow worked with lasers of some strange wavelength, and managed to make it travel a long distance in a longer period of time then it should've taken. It had something to do with specialized wavelengths, and some greek characters that made my brain hurt at that time.

It won't work with electrons though. They don't listen to physicists. Dumn electrons.
• 10-19-2004, 09:16 PM
mdrt4me
http://www.davidnavone.com/amp.html

http://www.davidnavone.com/detail.asp?PRODUCT_ID=N-66A

has 555 timer with adjustable pot. for 0-30 second delay I use one to delay my amp signal to relieve my system from having any boot startup noises.
• 10-19-2004, 09:17 PM
jcdillin
Quote:

Originally Posted by XxAndyxX
You have quite a bit of time on your hands don't ya? lol

:lol::lol:
• 10-20-2004, 01:19 PM
sssssss27
Quote:

Originally Posted by kiltjim
I read this about 3 months ago in one of my many physics magazines. They have managed to 'slow' light in essence. They (and in this case its not mysterious I think they were British) somehow worked with lasers of some strange wavelength, and managed to make it travel a long distance in a longer period of time then it should've taken. It had something to do with specialized wavelengths, and some greek characters that made my brain hurt at that time.

It won't work with electrons though. They don't listen to physicists. Dumn electrons.

I thought they were using some special substance the light was being shot into. I know they stopped light, although it was only for something like a fraction of a second.
• 10-25-2004, 03:29 PM
kiltjim
Yeah, I seem to remember rubies coming into play. It might have been the type of laser they were using though.

The experiment I was thinking off was across the English Channel or something. It had something to do with a communications project. Something like using light instead of wires. They managed to slow it down to within like 90% the speed of light. I can't remember how they did it though, and still stayed within the laws of physics.

I'll have to dig through the box of magazines to find it now....
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