I am looking for diagrams on building a Regen Receiver useing 2 - 4
tubes.
About 7 - 10 years ago a radio magazine had an article on building one but
I'll be darned if I can remember which one.

Take a look at http://www.tubesandmore.com - Select "books" and enter
"regen" in the search field. You will find at leat ten hits, all with books
full of diagrams and drawings. Cheap, too!

BR MOTU