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Old 11-12-2007, 04:21 AM   #1
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Lightning Round Project


I want to make a podium that has two light bulbs and two switches, the idea is to make a game-show like stand where two people can come up, be asked a question then the first person to answer hits his respective button which turns on his light.

This is where I need the electrical help, I want to know how I can turn off the opponents light so that the first person to hit their button turns on their light and cuts off the circuit of the other so that only one light can be on at any given time.

Any ideas?

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Old 11-13-2007, 06:29 AM   #2
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Lightning Round Project


A friend of mine did the exact same thing. He ordered a kit from www.ElectronicKits.com.

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Old 11-13-2007, 03:24 PM   #3
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Darn. I was hoping someone would post how to do it. I've been sittin here lurking so I could have something to do over Thanksgiving when my nieces come to visit. I don't want to order no stinkin' kit! Some one post how to do it with romex and other **** I have in my basement!
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Old 11-13-2007, 05:20 PM   #4
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Quote:
Originally Posted by Andy in ATL View Post
Darn. I was hoping someone would post how to do it. I've been sittin here lurking so I could have something to do over Thanksgiving when my nieces come to visit. I don't want to order no stinkin' kit! Some one post how to do it with romex and other **** I have in my basement!
One Word RELAYS

But I'm gonna let you work out the details Andy:
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Old 11-13-2007, 05:49 PM   #5
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Jbfan: You know darn well that it is much easier and more fun if someone else does all the hard thinking and design...What the hell else do we have EE's and architects on commercial???
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Old 11-13-2007, 09:30 PM   #6
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Originally Posted by Andy in ATL View Post
Jbfan: You know darn well that it is much easier and more fun if someone else does all the hard thinking and design...What the hell else do we have EE's and architects on commercial???
To allow use to issue change orders because they forgot stuff!!!!!!!!!
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Old 11-15-2007, 04:36 PM   #7
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yeah I called they company they are on back order for the product
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Old 11-15-2007, 05:27 PM   #8
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Lightning Round Project


Hint..... you need 2 single pole switches (push button if you want) and two solenoid relays each with two NC contacts.
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Old 11-15-2007, 07:28 PM   #9
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Ok here it is
Attached Thumbnails
Lightning Round Project-lightning-round-game-show.jpg  
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Last edited by Stubbie; 11-16-2007 at 01:29 AM. Reason: remove term neutral
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Old 11-15-2007, 08:00 PM   #10
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Sweet
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Old 11-15-2007, 11:09 PM   #11
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Lightning Round Project


There is something in my drawing that isn't necessary anybody care to find it?
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Old 11-15-2007, 11:22 PM   #12
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Stubbie i did found the curpit why the digram will not work [ sorry i did not get a chance to reply more ealier but i was waiting if other did reply or not ]


but i will tell you in a min actally a error there allready

merci , Marc

give me a few min i will go over the chart very carefully because you marked NC concats it kind threw me a bit

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Old 11-15-2007, 11:58 PM   #13
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I was temping to draw a digram here but little diffrent but work very simuair that i will use the SPDT relay both with NO conacats each side until that perosn on one side hit it and pull the relay to light up that side and other side can not close the relay due the DT format.

Am i makeing sense ??


Merci, Marc
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Old 11-16-2007, 01:09 AM   #14
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Perfect sense

there are probably several ways to do this
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Old 11-16-2007, 10:52 AM   #15
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Lightning Round Project


Stubbie: The switches must be held down thw whole time you are answering to prevent the other light from working.
You need some kind of holding circuit.

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