Latest developments from G. L. Charvat
THz, mmW, microwave & medical imaging, RADAR, radio, and vacuum tube circuits.
Wednesday, March 18, 2026
Wednesday, March 11, 2026
Wednesday, March 4, 2026
They say they needed an accurate curve tracer tracer for testing transistors…
They say they needed an accurate curve tracer tracer for testing transistors… welcome the Tektronix 575 to the lab, still sweeping transistors 50-60 years later.
Wednesday, February 25, 2026
Who is a woman who has inspired your career?
That's an easy one! My mother, of course. She would take me to her electrical engineering courses at Lawrence Tech in the 1980's when i was a child. Thanks to her, I learned that there is no higher calling than Electrical Engineering.
Below is an image of her senior design project, fully restored and operational once more so that i can show my daughters about their terrific grandmother.
Wednesday, February 18, 2026
Atari 2600 to NTSC
Converted the Atari 2600 to NTSC. It required numerous modifications, surprisingly. The kids just love to play 8 bit video games.
Wednesday, February 11, 2026
Engineering Espresso
Engineering Espresso (both editions, thank you for your hard work Dr. Robert McKeon Aloe ), J C Bose, and MIT Radiation Laboratory mash-up.
https://engineering-espresso.com/about/
Wednesday, February 4, 2026
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