I'm wondering if this
one needs to be added at the top of the first page now, Huw.
There are some nice manuals on there; and it seems to get called up a lot these days by Google* searches.
Meanwhile, the link to VIPmedinc seems to have died - RIP.
The GE link needs editing, too (see Post 73344).
* Other internet search engines are available.
By the way, if anyone else (besides me, that is) has "fond memories" of the Radio Shack booklets by Forrest Mims - well, you can find them again here