LED Lampost - Page 3 - Model Train Forum - the complete model train resource
Model Train Forum - the complete model train resource  

Go Back   Model Train Forum - the complete model train resource > Model Train Workshop > Technical Model Train Forum
Forgotten your password?

Technical Model Train Forum Discussion on advanced technical aspects.


Reply
 
Thread Tools Display Modes
Old 03-07-2013, 07:40 AM   #21
ktcards
Conductor
 
ktcards's Avatar
 
Join Date: Sep 2012
Location: South Paris, Maine
Posts: 336
Images: 1
Quote:
Originally Posted by T-Man View Post
Next is power connection. The easiest for both AC and DC use is a Bridge rectifier that I make with four 1N4001 Diodes. You can use smaller diodesBut you ca also use it to power more than one post. I am planning on three.
You can get a full wave bridge rectifier already wired (saves all of that wiring and soldering) for as little as $0.50 each. Add a capacitor and it becomes a constant lighting unit which will work on either A.C. or D.C..

I put several together and the total was less than $1.00 each.

Ray
ktcards is offline   Reply With Quote
Old 03-07-2013, 05:02 PM   #22
T-Man
Yard Master & Research
 
T-Man's Avatar
 
Join Date: May 2008
Location: Seacoast, NH
Posts: 8,284
Scales Modeled: Lionel, S, HO
Images: 259
Don't stop there. How about some details?

I bought diodes in bulk, plus I can arrange them on a board as needed. I would like to see the board you use. Is yours for any specific scale?
__________________
"T" stands for
Trains, Track, Trestles, and more Trains

How-To Column and Signature links Post number 4.


Links under O Scale Information
T-Man is offline   Reply With Quote
Old 03-07-2013, 06:18 PM   #23
ktcards
Conductor
 
ktcards's Avatar
 
Join Date: Sep 2012
Location: South Paris, Maine
Posts: 336
Images: 1
Quote:
Originally Posted by T-Man View Post
Don't stop there. How about some details?

I bought diodes in bulk, plus I can arrange them on a board as needed. I would like to see the board you use. Is yours for any specific scale?
This concept has been discussed before. Here is a link to the thread.

http://www.modeltrainforum.com/showthread.php?t=15513

Ray
ktcards is offline   Reply With Quote
Old 03-07-2013, 10:04 PM   #24
T-Man
Yard Master & Research
 
T-Man's Avatar
 
Join Date: May 2008
Location: Seacoast, NH
Posts: 8,284
Scales Modeled: Lionel, S, HO
Images: 259
A 1.4 amp diode and 680 uf capacitor. Got it!

I just like to see what people are using.

I tagged the thread as LED constant.
__________________
"T" stands for
Trains, Track, Trestles, and more Trains

How-To Column and Signature links Post number 4.


Links under O Scale Information
T-Man is offline   Reply With Quote
Old 03-08-2013, 10:12 AM   #25
gunrunnerjohn
Admin
 
gunrunnerjohn's Avatar
 
Join Date: Nov 2010
Location: SE-PA, USA
Posts: 21,445
Scales Modeled: O-gauge 3-rail
Images: 4
I use the CL-2 constant current source for truly constant intensity LED lighting. If I want more current for multiple LED's, I use an LM317T in a constant current configuration.
__________________
MTH ASC Certified Tech, North Penn O-Gaugers, Member TCA


The most terrifying words in the English language are: I'm from the government and I'm here to help., Ronald Reagan
gunrunnerjohn is online now   Reply With Quote
Reply


Tags
lamp post, led lamp post


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


» Visit These Sites:
LGB World

Or Our European Train Website ModelRailForum




All times are GMT -5. The time now is 06:15 PM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©2008-2013 Model Train Forum