John wrote:
> DougW,
> cool website. I like the LED turn signals. I might try that.

Thanks, :)

If you do the signals remember it takes quite a bit of messing around
to get them right. I never protected mine apart from some rubber tape.
A more permanant solution would probably be a coating of rtv sealant.

The LEDs do chalk with sun exposure, but the can be cleaned again
with some flitz or simlar stuff.

--
DougW

 

John wrote:
> DougW,
> cool website. I like the LED turn signals. I might try that.

Thanks, :)

If you do the signals remember it takes quite a bit of messing around
to get them right. I never protected mine apart from some rubber tape.
A more permanant solution would probably be a coating of rtv sealant.

The LEDs do chalk with sun exposure, but the can be cleaned again
with some flitz or simlar stuff.

--
DougW

 

John wrote:
> DougW,
> cool website. I like the LED turn signals. I might try that.

Thanks, :)

If you do the signals remember it takes quite a bit of messing around
to get them right. I never protected mine apart from some rubber tape.
A more permanant solution would probably be a coating of rtv sealant.

The LEDs do chalk with sun exposure, but the can be cleaned again
with some flitz or simlar stuff.

--
DougW

 

DougW,
question: If you use a 5v voltage regulator, why do you need the 200 ohm
resistors? I dont get it. I've hooked up LED's using only 1K ohm resistors
and they worked fine.
Are the resistors necessary?

Thanks


"DougW" <I.only.read.usenet@invalid.address> wrote in message
news:u_8Ui.21601$XU3.1599@newsfe15.phx...
> John wrote:
>> DougW,
>> cool website. I like the LED turn signals. I might try that.
>
> Thanks, :)
>
> If you do the signals remember it takes quite a bit of messing around
> to get them right. I never protected mine apart from some rubber tape.
> A more permanant solution would probably be a coating of rtv sealant.
>
> The LEDs do chalk with sun exposure, but the can be cleaned again
> with some flitz or simlar stuff.
>
> --
> DougW
>
>
>

 

DougW,
question: If you use a 5v voltage regulator, why do you need the 200 ohm
resistors? I dont get it. I've hooked up LED's using only 1K ohm resistors
and they worked fine.
Are the resistors necessary?

Thanks


"DougW" <I.only.read.usenet@invalid.address> wrote in message
news:u_8Ui.21601$XU3.1599@newsfe15.phx...
> John wrote:
>> DougW,
>> cool website. I like the LED turn signals. I might try that.
>
> Thanks, :)
>
> If you do the signals remember it takes quite a bit of messing around
> to get them right. I never protected mine apart from some rubber tape.
> A more permanant solution would probably be a coating of rtv sealant.
>
> The LEDs do chalk with sun exposure, but the can be cleaned again
> with some flitz or simlar stuff.
>
> --
> DougW
>
>
>

 

DougW,
question: If you use a 5v voltage regulator, why do you need the 200 ohm
resistors? I dont get it. I've hooked up LED's using only 1K ohm resistors
and they worked fine.
Are the resistors necessary?

Thanks


"DougW" <I.only.read.usenet@invalid.address> wrote in message
news:u_8Ui.21601$XU3.1599@newsfe15.phx...
> John wrote:
>> DougW,
>> cool website. I like the LED turn signals. I might try that.
>
> Thanks, :)
>
> If you do the signals remember it takes quite a bit of messing around
> to get them right. I never protected mine apart from some rubber tape.
> A more permanant solution would probably be a coating of rtv sealant.
>
> The LEDs do chalk with sun exposure, but the can be cleaned again
> with some flitz or simlar stuff.
>
> --
> DougW
>
>
>

 

http://www.the12volt.com/ohm/page2.asp
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

"John" <Here@there.com> wrote in message
news:47228aeb$0$16519$4c368faf@roadrunner.com...
> DougW,
> question: If you use a 5v voltage regulator, why do you need the 200 ohm
> resistors? I dont get it. I've hooked up LED's using only 1K ohm
resistors
> and they worked fine.
> Are the resistors necessary?
>
> Thanks

 

http://www.the12volt.com/ohm/page2.asp
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

"John" <Here@there.com> wrote in message
news:47228aeb$0$16519$4c368faf@roadrunner.com...
> DougW,
> question: If you use a 5v voltage regulator, why do you need the 200 ohm
> resistors? I dont get it. I've hooked up LED's using only 1K ohm
resistors
> and they worked fine.
> Are the resistors necessary?
>
> Thanks

 

http://www.the12volt.com/ohm/page2.asp
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

"John" <Here@there.com> wrote in message
news:47228aeb$0$16519$4c368faf@roadrunner.com...
> DougW,
> question: If you use a 5v voltage regulator, why do you need the 200 ohm
> resistors? I dont get it. I've hooked up LED's using only 1K ohm
resistors
> and they worked fine.
> Are the resistors necessary?
>
> Thanks

 

John wrote:
> DougW,
> question: If you use a 5v voltage regulator, why do you need the 200
> ohm resistors? I dont get it. I've hooked up LED's using only 1K
> ohm resistors and they worked fine.
> Are the resistors necessary?

The resistors are current limiters for the LEDs. Without them the LEDs
would burn very brightly for a second then become a SED
(Smoke Emitting Diode). :)

Actually you can drop using the regulator and just size the resistors
for 14V. But since the voltage is hard to predict I dropped in a regulator.
That means that even if the battery is a bit low, or a bit high, The signals
will always be the same brightness.

The cheaper LEDs you see for cars either have a regulator in them or
more commonly a limiting resistor.

When shopping for LEDs you are looking for the brightness (mcd) and viewing
angle. The hardest part was figuring out the viewing angle so that motorist
could see the signals. Still not sure I got it right.

This site has some useful info and calculators.
http://www.theledlight.com/technical.html

--
DougW