I haven't watched the whole video yet, but I used to maintain a projection CRT. Beyond the insane PITA of trying to keep the 3 tubes aligned for more than a day, these things require scary amounts of electricity to operate.
The model I worked on had 40kV input for each CRT, and a disconnected CRT stores a charge like a capacitor, which is a real hazard if you're doing maintenance.
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Video projectors used to be ridiculously cool [34:30] | Technology Connections | Spyke
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I haven't watched the whole video yet, but I used to maintain a projection CRT. Beyond the insane PITA of trying to keep the 3 tubes aligned for more than a day, these things require scary amounts of electricity to operate.
The model I worked on had 40kV input for each CRT, and a disconnected CRT stores a charge like a capacitor, which is a real hazard if you're doing maintenance.