Electronics Pioneers & History
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Karl Kurz, together with Heinrich Barkhausen, discovered the Barkhausen-Kurz
oscillations, also known as the Barkhausen-Kurz effect, in 1919. This effect
refers to the phenomenon of magnetic domain wall motion in ferromagnetic
materials, which produces oscillations in the electrical current passing through
the material.
Kurz also contributed to the development of the Kurz tube, an early type of
vacuum tube that was used in early radio receivers and transmitters. The Kurz
tube was notable for its ability to amplify very high frequencies, making it
useful for early experiments in radio and telecommunications.
Overall, Karl Kurz was a key figure in the early development of electronics
and his contributions to the study of electronic vibrations were significant.
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 While working on an
update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators
about FM sidebands (available soon). The good news is that AI provided excellent
VBA code to generate a set of
Bessel function plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically
explain their reason and method correctly, then go on to produces bad results.
Even after pointing out errors, subsequent results are still wrong. I do a
lot of AI work and see this often, even with subscribing to professional
versions. I ultimately generated the table myself. There is going to be a
lot of inaccurate information out there based on unverified AI queries, so
beware.
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