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Video (updated): TEMPEST PC (Patreon)

Published:
2026-06-29 05:53:12
Imported:
2026-08

Content

Fixed some issues

https://www.youtube.com/watch?v=9fGCQBGes20

Thank you all so much for your feedback, I found a number of minor errors and one whopper!

As explained in the new version (RC3), I somehow mixed up the MDA and CGA graphics cards. I have no idea how this is possible, but I was able to edit around it pretty effectively. Besides that I adjusted the volume of some of the effects, incorporated some info various viewers provided, and corrected a few flubs.

I'm pretty sure THIS one is going to be the final version, so if you want to re-post your comments, feel free. Thanks again!

Files

EMR AT RC3

Support me on Patreon: https://www.patreon.com/cathoderaydude Tip me: https://ko-fi.com/cathoderaydude

Comments

Adam C.

That was absolutely fascinating.

Nick R

I did my best to leave an explanation that is somewhere between over-simplified nonsense and omg math for why holes can block certain wavelengths...but yeah that's something that can boggle the mind

Strawberry Daquiri

On the topic of rf shielding PCs, i found a mini tower case at value villain yesterday made entirely of metal screen panels, when i put a machine in it i will have to check for leaks :3

Robert Yates

Something I just realized on re watching this. The top seal that looks like the zinc chromate treated steel that was common in computers at this time, is actually still chromate. https://rfessentials.com/resources/rf-glossary/chromate-conversion/ The TLDR is that aluminum rapidly forms a layer of aluminum oxide on it's surface in the presence of air (as in basically instantly when scratched or machined), so normally any kind of RF shielding gasket isn't going to make a good electrical connection since aluminum oxide is an electrical insulator. So the surface of the aluminum is treated with chromic acid to form a "mixed aluminum-chromium oxide gel that dries to a hard, adherent film". That film IS conductive and durable enough to serve as a long lasting surface for the RF gasket material to seat against. TIL

Philip Storry

Wow. That was an incredible video - your usual mix of thorough research and great presentation. Thank you!

A Strange Cat

bup buppa bup buppa bup buppa brrrrrrrrrRRRR i remember back in 08 or so i'd have my phone on my desk and i could tell if i was getting a text or a call depending on how the speakers bipped and bopped at me. i miss that edit because i forgot: first time i heard that in the video it stunlocked me for a second and i whole ass went *GRAVIS* out loud, lol. cheers for the flashbacks

J Brandt Buckley

I look forward to the smaller projects, too. You and Technology Connections are unreasonably good at finding the interesting angle in seemingly mundane things. I have no doubt that it takes work, but don't underestimate what you, personally, bring to the table as a baseline.

Danny Beans

I have the tiniest, most inconsequential bit of feedback: I don't think you need the "an" in the final YouTube title. "A Tempest in AT-cup" parses just fine, and keeps the phrase's original rhythm.