HI all. I am trying to look into the dimensioning of an inductor as part of the PCB traces etc I cannot find any reference to how to do this on the net, has anyone any suggested URL's for where I might find this info? Many thanks - Matthew Lamkin Printed Circuitboard Draughtsman Protec Fire Detection PLC. ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################