In case you’re not familiar with old school CRT or cathode ray tube TVs and monitors (would it be dating ourselves to say that we remember them well?), they’re those clunky things we used to use ...
One of [CNLohr]’s bigger claims to fame is his process for making glass PCBs. They’re pretty much identical to regular, fiberglass-based PCBs, but [CNLohr] is building circuits on microscope slides.