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upnick

1.8mm SMD'S

Hi All,  

20  of  these tiny  SMD's  arrived  today  ideal  for  my  locos especially some  of  the  smaller  switchers (NW2)    

http://tinyurl.com/6zuhhl
poliss

Do you use diodes too?
upnick

Must  admit  no  i  dont  Poliss  ..... gets to technical  for me and fitting a resistor  at  times is a challenge.
dtrains

Hi have you tryed useing bi-colour leds red/white they are great for headlights as they change colour backward or foreward regards des(dtrains)
upnick

dtrains wrote:
Hi have you tryed useing bi-colour leds red/white they are great for headlights as they change colour backward or foreward regards des(dtrains)


Hi  dtrains,  

Welcome  to the  forum      

I  havnt  seen   white/red  bipolar   LED'S     only   green/red.  
Notice your  in  Burnley  same  as me      i  presume  its in Lancashire   ?
m.levin

upnick wrote:
dtrains wrote:
Hi have you tryed useing bi-colour leds red/white they are great for headlights as they change colour backward or foreward regards des(dtrains)


Hi  dtrains,  

Welcome  to the  forum      

I  havnt  seen   white/red  bipolar   LED'S     only   green/red.  
Notice your  in  Burnley  same  as me      i  presume  its in Lancashire   ?


You can get Red and yellow, not seen red or white though, but not looked.
upnick

m.levin wrote:

You can get Red and yellow, not seen red or white though, but not looked.


Hi  

I  had forgotten  about  starting  thie thread  in   fact i   mistitled  the  original  posting as they  are SMD's  not    LED's   though   still  need resistors.  

I bought  them from  ebay    

This seller has three  pages of  them  in   all  colours  including red/white.  

http://tinyurl.com/kqz3qe
m.levin

I also find these  1.8mm LEDs ideal for UK ground signals.
upnick

m.levin wrote:
I also find these  1.8mm LEDs ideal for UK ground signals.


True  but they  are very  bright  for trackside applications.
m.levin

You can reduce the Brightness by increasing the resistor value, or placing a potentiometer in place, you can then adjust the brightness to suit.
upnick

m.levin wrote:
You can reduce the Brightness by increasing the resistor value, or placing a potentiometer in place, you can then adjust the brightness to suit.


Hope these links  helps you answer  some  questions  

http://www.theledlight.com/ledcircuits.html

http://www.dccconcepts.com/index_files/DCClightgeninfo1.htm
m.levin

upnick wrote:
m.levin wrote:
You can reduce the Brightness by increasing the resistor value, or placing a potentiometer in place, you can then adjust the brightness to suit.


Hope these links  helps you answer  some  questions  

http://www.theledlight.com/ledcircuits.html

http://www.dccconcepts.com/index_files/DCClightgeninfo1.htm


Sorry I wasn't asking if you could, I was saying you could. Those links might be useful for someone else.
Steamer

m.levin wrote:
You can reduce the Brightness by increasing the resistor value, or placing a potentiometer in place, you can then adjust the brightness to suit.


I see we have the venerable 'god of lights' in our midst.
m.levin

Steamer wrote:
m.levin wrote:
You can reduce the Brightness by increasing the resistor value, or placing a potentiometer in place, you can then adjust the brightness to suit.


I see we have the venerable 'god of lights' in our midst.


Ah thanks Steamer, someone who knows my work  
Teleman

Me too Martin , the penny will drop with the rest of them if you post some of your layout pictures  
m.levin

Teleman wrote:
Me too Martin , the penny will drop with the rest of them if you post some of your layout pictures  


layout? don't you mean track matt
dave`s dangerous

Bought some l e d `s from new modellers shop Peterborough and they have the resistors built in

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