Thanks for the information.  I need to sit down and digest it.  Manualbloc estimated around $125 for the cost; so, I'm very glad to see you two are very close in cost.  I'm also glad it will "kick some serious can."  I've built a few kits (all from Bottlehead) but the idea of going from schematics to a functioning piece of equipment is really exciting for me.  All the help I can get in understanding design vs function is greatly appreciated, and, again, I thank you for your help....Regards, Colin
PS. I'm going to try to get the powers that be to start a new forum for group build projects.  Not only for this preamp, but hopefully this is just one project of many.