Comments by "eDoc2020" (@eDoc2020) on "DIY Perks" channel.

  1. Definitely add extra grounding wires. Since some of the frame is held together with glue instead of direct metal on metal there might be breaks in his bonding.
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  2. Definitely try different panel technologies. Old TN panels are usually white when unpowered and AFAIK this means there's a good chance both polarizers are in the same direction. This would mean they can be stacked without interference. The efficiency would also be much higher this way.
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  3. Unlike some other designer systems (ahem, Apple) this is a standard Mini-ITX system. He can just install a new board when this is no longer sufficient.
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  4. I was also thinking this would be an issue.
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  5.  @Kalvinjj  I love monochrome CRTs but even they have resolution limitations. The dot the electron beam makes on the phosphor is an image of the tube's cathode focused with electrostatic and/or magnetic lenses. This puts a limit on the smallest dot size.
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  6.  @Kalvinjj  Smaller American postwar TVs used electrostatic deflection. The 7-inch 7JP4 was most common tube but there were a few 8s and even a 3.
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  7. If you use all the processing power for a crypto farm it will use a ton of electricity. Btw the vast majority of smartphones won't run without a battery installed.
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  8. The fan used is very quiet, but more importantly in professional video applications an external microphone is almost always used.
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  9.  @FlorianEagox  Assuming he still has extra leather he can cut another IO 'shield' out of it. He might want to upgrade the front ports at some point but if future motherboards use a different USB header I'm sure adapters will be available.
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  10. I believe they work better when air is pushed instead of pulled because of turbulence. Normally the fans on coolers are blowing into the heatsink, not sucking air.
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  11. Trace amounts of ozone might work, but keep in mind too much ozone can cause health issues.
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  12. A slight angle doesn't hurt the packing very much. At a 30 degree angle you can still fit over 80% of what you could if the devices were perpendicular to the wall.
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  13. Hi, did you consider using thin 120mm fans lying flat on the bottom and blowing up instead of 40mm fans blowing horizontally? There would be some more engineering considerations but I think it might be easier to implement overall. Also, how hot does the table get when it's being used heavily?
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  14.  @evilgremlin  I imagine either his LED panels have built-in current limiting, or he is using current limiting through his boost converters. Modern LEDs seem to be well matched from the factory, so if all his panels are from the same batch they will probably word fine if dimmed. Maybe it will be uneven at super low brightness, but 10% should be more than enough to eliminate that.
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  15. The airflow performance is comparable to the four fans, but how does the power consumption compare?
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  16. I bet if you look at it at night even a black screen will be bright.
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  17. I think most PC watercooling hardware is copper based. This is often nickel-plated for better looks.
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  18. I agree. A battery for standby would be easy but if the PC were to wake up it wouldn't go too well. Some LiPos for RC airplanes could probably handle the lead.
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  19.  @Kalvinjj  And also CRTs themselves (at least monochrome ones) are actually fairly low power. Most of the power usage is from inefficiencies in the deflection and other circuits. A standard 1940s CRT only uses four watts at the neck and if the picture's bright maybe a watt or two for the beam. More modern ones use even less power at the neck.
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  20.  @Kalvinjj  It is like saying LCDs use little power but the backlight does. When they switched from CCFLs to LEDs monitor power consumption dropped dramatically. With modern circuitry optimized for low power they could make CRT displays which use less power. One easy way to save power is to use electrostatic deflection instead of magnetic. The downside is electrostatic CRTs can't have large deflection angles, so they'd be uncomfortably deep for large screens.
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