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1.8mm SMD'S

 
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upnick
Engine Driver


Joined: 02 Oct 2008
Posts: 1476
PostPosted: Thu Oct 23, 2008 11:25 pm    Post subject: 1.8mm SMD'S Reply with quote
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
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Last edited by upnick on Thu Sep 24, 2009 2:11 pm; edited 1 time in total
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poliss
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Joined: 24 Feb 2008
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Location: Newcastle
PostPosted: Thu Oct 23, 2008 11:37 pm    Post subject: Reply with quote
Do you use diodes too?
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upnick
Engine Driver


Joined: 02 Oct 2008
Posts: 1476
PostPosted: Fri Oct 24, 2008 1:35 am    Post subject: Reply with quote
Must  admit  no  i  dont  Poliss  ..... gets to technical  for me and fitting a resistor  at  times is a challenge.
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dtrains
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Joined: 30 Dec 2008
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Location: burnley
PostPosted: Tue Dec 30, 2008 6:40 pm    Post subject: Reply with quote
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)
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dtrains
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upnick
Engine Driver


Joined: 02 Oct 2008
Posts: 1476
PostPosted: Sat Jan 03, 2009 3:34 am    Post subject: Reply with quote
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   ?
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m.levin
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Joined: 24 Sep 2009
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PostPosted: Thu Sep 24, 2009 1:32 pm    Post subject: Reply with quote
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.
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upnick
Engine Driver


Joined: 02 Oct 2008
Posts: 1476
PostPosted: Thu Sep 24, 2009 2:17 pm    Post subject: Reply with quote
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
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m.levin
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PostPosted: Fri Sep 25, 2009 11:21 am    Post subject: Reply with quote
I also find these  1.8mm LEDs ideal for UK ground signals.
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upnick
Engine Driver


Joined: 02 Oct 2008
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PostPosted: Fri Sep 25, 2009 12:37 pm    Post subject: Reply with quote
m.levin wrote:
I also find these  1.8mm LEDs ideal for UK ground signals.


True  but they  are very  bright  for trackside applications.
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m.levin
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PostPosted: Fri Sep 25, 2009 1:28 pm    Post subject: Reply with quote
You can reduce the Brightness by increasing the resistor value, or placing a potentiometer in place, you can then adjust the brightness to suit.
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upnick
Engine Driver


Joined: 02 Oct 2008
Posts: 1476
PostPosted: Fri Sep 25, 2009 4:57 pm    Post subject: Reply with quote
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
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m.levin
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PostPosted: Sat Sep 26, 2009 4:17 pm    Post subject: Reply with quote
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.
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Steamer
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Joined: 04 Jun 2009
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PostPosted: Sat Sep 26, 2009 6:54 pm    Post subject: Reply with quote
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.
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m.levin
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PostPosted: Sat Sep 26, 2009 6:56 pm    Post subject: Reply with quote
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  
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Teleman
Chief Mechanical Engineer


Joined: 24 Feb 2008
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Location: Cambridgeshire ~ Essex Border
PostPosted: Sat Sep 26, 2009 7:08 pm    Post subject: Reply with quote
Me too Martin , the penny will drop with the rest of them if you post some of your layout pictures  
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m.levin
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PostPosted: Sat Sep 26, 2009 7:18 pm    Post subject: Reply with quote
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
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dave`s dangerous
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Joined: 31 Dec 2008
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Location: bridlington
PostPosted: Sun Sep 27, 2009 7:52 pm    Post subject: Reply with quote
Bought some l e d `s from new modellers shop Peterborough and they have the resistors built in


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