Lights are yummy - Page 4 - Fiberglass RV


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Old 06-05-2013, 08:44 PM   #43
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Originally Posted by Byron Kinnaman View Post
It could be a big mistake to mess with those things. After looking at the schematic and parts on the board there is NO RF suppression. Meaning the 150K (150 kilohertz) will be broadcast everywhere close, along with harmonics.
It's more than likely illegal to use in both Canada and the USA.
Oh great. Last week my Wagonmaster furnace went from Illegal people-killer to viable (and possibly highly desireable). Now my lighting system is an illegal RF poluter.

This device is going to be operating at a very low wattage. How far can you realistically expect the RF to travel?
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Old 06-05-2013, 10:26 PM   #44
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Oh great. Last week my Wagonmaster furnace went from Illegal people-killer to viable (and possibly highly desireable). Now my lighting system is an illegal RF poluter.

This device is going to be operating at a very low wattage. How far can you realistically expect the RF to travel?
Travel distance is dependent on many things. Effects on your neighbors TV, Radio, stereo, are hard to predict. Effects on ham radio, can be nasty. Fines start at about $10,000 for interfering with any licensed service, which includes police radio, fire department radio, etc.

Is it worth the risk.

Try using an LM 7805 device and eliminate the problem. For the wannabees that's a 5 volt linear regulator.

Here's a link to the data sheet.
FIgure 1. is a schematic of how to hook it up.

There's other ways but this is probably the simplest.
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Old 06-06-2013, 07:25 AM   #45
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Travel distance is dependent on many things. Effects on your neighbors TV, Radio, stereo, are hard to predict. Effects on ham radio, can be nasty. Fines start at about $10,000 for interfering with any licensed service, which includes police radio, fire department radio, etc.

Is it worth the risk.

Try using an LM 7805 device and eliminate the problem. For the wannabees that's a 5 volt linear regulator.

Here's a link to the data sheet.
FIgure 1. is a schematic of how to hook it up.


There's other ways but this is probably the simplest.
If I am reading this this correctly, I can wire this in parallel between the circuit board recommended by Thomas G and the led light. If I do this the RF noise will be filtered out. Am I reading this correctly?
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Old 06-06-2013, 07:44 AM   #46
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If I am reading this this correctly, I can wire this in parallel between the circuit board recommended by Thomas G and the led light. If I do this the RF noise will be filtered out. Am I reading this correctly?
You use this in place of the circuit board.
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Old 06-06-2013, 10:13 AM   #47
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Try using an LM 7805 device and eliminate the problem. For the wannabees that's a 5 volt linear regulator.
I qualify as a wannabee... (I'm a software guy, but while I've always enjoyed building stuff, I just never got into electronics, digital or otherwise...)

I read the spec sheet, but couldn't find any indication of how efficient these things are. If I'm drawing (for example) 6W off the output side of one of these, how much power is going in?

Also, can you point me at a good mail-order source for these and other useful parts in small volumes?

Thanks...
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Old 06-06-2013, 10:40 AM   #48
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Also, can you point me at a good mail-order source for these and other useful parts in small volumes?

Thanks...
Your profile says you are in Ontario. There is a chain of stores called "Sayal" which are a good option.

Active Electronics is more expensive then Sayal but they have a catalog that is much more diverse and complete.

If you don't care when it gets here, try ebay. Many components come shipped direct from china for pennies.

Derek
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Old 06-06-2013, 11:48 AM   #49
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Although I have not seen peterh posting in a while, he has written volumes on LED's and electrical. Well worth a search.

Does anybody know what has happened to him?
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