These kits are a favorite of educators! These kits use animated LED's to illustrate the action of capacitors, inductors and resistors. Note: These kits are to be discontinued. Get them while you can! Individual Kits $24.99 3 in 1 Kit $69.99 Copyright © 2003-2009 E-Clec-Tech. All rights reserved. All other materials and logos are copyrighted by their respective owners, or companies.