. . . which may be of interest to the technically or historically inclined.
The URLs of web sites outside of the Tonne Software site are offered for your convenience in accessing related technical
as that on other web sites. We can't attest to the accuracy of information provided by these other sites. Providing
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A fascinating site with downloadable info on vintage radios, based in the U.K.
Extensive info on GPS frequency standards, 6-meter amplifier and filter, other amateur radio items.
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