Edit post

Edit your reply below.

Post Body
Enter your post below.
Fred, Just for reference... Not flamin' just explain'. A rectifier converts AC current to square wave DC. LEDs work on both DC and AC power so you do not need to add the rectifier. The resistor is needed to reduce the current flow through the LED and must be added in "series" with the LED not "parallel". i.e. |pwr|--|resistor|--|LED|--|gnd| and it doesn't matter which side of the LED the resistor is on, pwr or gnd it is there only to limit the current. For most LED applications a 870 - 1k (1,000) ohm is satisfactory. The higher the resistance the dimmer the light. In some of my buildings I have put 10k resistors because all I wanted is a very dim glow of light. However, I don't recommend less than 870 ohm as an LED will burn out if to much current flows through it. LEDs come in many different sizes. From X-Lrg 10mm diameter to the new Micro-Mini 1.5mm. (http://207.234.141.88/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=6_1)
Tags (Optional)
Tags are keywords that get attached to your post. They are used to categorize your submission and make it easier to search for. To add tags to your post type a tag into the box below and click the "Add Tag" button.
Add Tag

Update Reply

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Model Railroader Newsletter See all

Sign up for our FREE e-newsletter and get model railroad news in your inbox!