http://www.tpub.com/neets/book21/87k.htm
Applications active matrix. Almost all of TI's app notes and data books listed in one place.
http://www.ti.com/sc/docs/apps/index.htm
Great WW2 era RF transmitting and audio power tube.
http://www.rod.beavon.clara.net/807.htm
Examples, test files, plots, documentation.
http://www.math.fsu.edu/~hoeij/compalg/algcurves.html
It is basically a diode detector followed by a high-gain audio amplifier. It picks up everything at once!
http://www.techlib.com/electronics/allband.htm
by Gene Sherman.
http://members.aol.com/shermdes/Bfrd.html
Selected images and equipment details for the telescope, camera, and software.
http://cometman.com
A history of DX'ing, plus listening tips by Brent Taylor of the Canadian Communications Foundation.
http://www.broadcasting-history.ca/engineering/DXing-The_Art_of_Listening_to_Distant_Signals.html
Areas covered include optics, woodworking, metalworking, electronics, programming, and telescope equipment, and tips and techniques.
http://www.atm-workshop.com/
Werner Funkenhauser describes in detail the loop antenna model he's been using for years to capture lots of rare Trans-Atlantic medium wave stations.
http://www.hard-core-dx.com/nordicdx/antenna/loop/1mloop.html