. . . which may be of interest to the technically or historically inclined.
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A fascinating site with downloadable info on vintage radios, based in the U.K.
A well-established antenna analysis program
A site featuring a simplified-interface Windows version of NEC2
U. K. Microwave Group - software and links page
A concise listing of computer-aided engineering links
A site with an emphasis on VHF, power amplifiers and Russian tubes
Cebik's antenna information saved by Igor, VA3ZNW