Samuel M. Goldwin's
Sci.Electronics.Repair FAQ
This is without a doubt the most comprehensive collection of
on line technical information I have ever ran across in one place on the web.
The entry page is a little confusing since you have to scroll through quite
a bit of introductry material to get to the meat, but it is well worth it.
Sam covers every thing from laser's to lawn mower's with considerable
detail and I see no reason to duplicate his efforts.
The main entry to the Table of Contents is about half way down
the page and I encourage EVERYONE to read Sam's introduction at least once.
I think he at least deserves that for the amount of work he has done on this
site.