Thanks to Mr. Hammond for doing these schematics. Since he seems to be bandwidth constrained, I've mirrored them on my server. Please download as much as you like as many times as you like: http://www.harm.org/~halbritt/ham-stuff/sb-220_schematic_11x14.pdf http://www.harm.org/~halbritt/ham-stuff/sb-220_schematic_2-pg.pdf Cheers, Heath Albritton (KG6GTX)