Dan Merkel wrote:
>
> "DMS" <wilsnack@[EMAIL PROTECTED]
> wrote in message
>
news:5806c26b-2826-48d7-b11a-38c0f1beebd5@[EMAIL PROTECTED]
> I have been using them extensively too. I find the surface mount ones
> the best, they are even smaller than the 3mm ones and they emit light
> in a broad angle...
>
> How I convert station lamps: http://layout.mixmox.com/1/Marklin-7283
> Resistor values for 12V: http://layout.mixmox.com/1/Resistors
> Determining resistance values: http://layout.mixmox.com/1/LED-resistor
>
> Results
> Illuminated signal box: http://layout.mixmox.com/1/signal_box
> In a winery building: http://layout.mixmox.com/1/Faller-130904
> As an arc-welder: http://layout.mixmox.com/1/Man-welding
> Shed light: http://layout.mixmox.com/1/shed-light
> Tunnel signal: http://layout.mixmox.com/1/tunnel-signal
> Water crane lantern: http://layout.mixmox.com/1/Water-crane-lamp
>
> Yup, I just love LEDs !
>
> and BTW, don't waste money on expensive ones of certain color, just
> use a dab of acrylic paint to make them as warm as you want them to
> be. Takes a just a few seconds.
>
> Dale
> http://remotesign.mixmox.com
>
> On Jun 12, 11:17 am, ND <nob...@[EMAIL PROTECTED]
> wrote:
> > "There are many reasons to switch to LED’s instead of regular
> > incandescent lighting":
> >
> > http://easyurl.net/UsingLED
>
> For those of us who are complete novices at LEDs & electronics in
general,
> can you provide some information as to how one would wire a circuit to
use
> them? I seem to remember that LEDs have a polarity to them (which is
> which), how about resistors? This looks interesting but I'm at a total
loss
> when it comes to even simple things mentioned in the previous two posts.
>
> Thanks...
>
> dlm
Most LEDs output only a very limited part of the colour spectrum, so
filtering them with a dab of acrylic paint can only reduce the spectrum
further, not change the colour.
"White" LEDs have (I think) phosphor over the light output which is
activated by the energy output and gives a much broader spectrum light
output, so you can filter those with the 'dab of acrylic' method.
The long lead is the positive one.
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