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 Post subject: Re: Need some help with IRO-LITE
PostPosted: Mon Jan 10, 2011 1:03 am 
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In the IRO video he shows a relay that does not have the 87a connection, he then shows how to make one by soldering a wire onto the normally closed contact inside the relay.

In the IRO lite video he shows a different relay, possibly radio shack, that I am not familiar with.

If you can get the relay to oscillate using the 87 contact will produce a weaker spike.

If you are using an automotive relay it is the central or 5th post. If your automotive relay only has four posts you will have to do the mod in the IRO video.

Beware, I have come across an automotive relay that has five posts but with two 87 contacts and no 87a. It is the 87a/normally closed contact you need to use.


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 Post subject: Re: Need some help with IRO-LITE
PostPosted: Mon Jan 10, 2011 8:16 pm 
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I am using the same radio shack relay he is using in his video. And the same battery setup and this thing gets HOT!!! It works on each pin so tonight after work I plan to put my scope on it to see witch has the bigger spike.

I have also switched to a 9volt Battery and there is no heat issue and plenty of light output. One thing I did notice is that the current draw is higher with the 9volt battery. I am not sure why as of yet perhaps it is a bad relay.

I would assume you could wire a 12v relay in self oscillation mode and use it instead of the 9v relay for the IRO-LITE that should let me use the 12v 7 amp hour battery's I have.

Thanks for taking the time to help with this issue. I will post some pics soon.

-Altrez


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 Post subject: Re: Need some help with IRO-LITE
PostPosted: Mon Jan 10, 2011 11:48 pm 
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If the relay is 9v it would explane some of the heat, but i dont understand why the current draw would be higher on 9v.


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