What got me hooked on this website was the fact that the author contacted the department my wife works in at Tektronix. I figure if he contacted Tektronix to get information on a 30 year old scope he was trying to restore, he can't be all bad. ;)

Nice information on several of the DIY stompbox schematics that are floating around, and he lists which Hammond chassis parts he uses, which is quite nice.