For those who are interested in building a bridge: Vasily K3IT Has converted one of the ExpressPCB boards [Schematic: Bridge_DualTC1-1-13_Alt_Ckt.gif] to Gerber format and has a project at OSH Park and a Mouser Project file. Details / links at my website near the bottom of the page. http://k9ivb.net/Hermes/ Dick K9IVB