Usagi Electric | VTC P.36 – Logic Done! @UsagiElectric | Uploaded March 2024 | Updated October 2024, 1 day ago.
Our DIY vacuum tube computer hits an insane milestone today – we finish up the logic! All that’s left after this is building out the paper tape and running code on it. We’re so close, so come along as we finish off the last little bits!

Ken Shirriff’s article on the MC14500:
righto.com/2021/02/a-one-bit-processor-explained-reverse.html

Tube Computer Wiki:
github.com/Nakazoto/UEVTC/wiki

Logisim file mentioned:
github.com/Nakazoto/UEVTC/blob/main/Reference/Logisim/FullSystem_v1.circ

MC14500 Single Board Computer:
youtu.be/md_cPxVDqeM

How I cut my PCBs:
youtu.be/AB84_vbH_e8

If you want to support the channel please hop over to Patreon:
patreon.com/usagielectric

Also, we now have some epic shirts for sale!
my-store-11554688.creator-spring.com

Come join us on Discord and Twitter!

Discord: discord.gg/p7UsfHD
Twitter: twitter.com/UsagiElectric

Intro Music adapted from:
Artist: The Runaway Five
Title: The Shinra Shuffle
ocremix.org/remix/OCR01847

Thanks for watching!

Chapters
0:00 The story so far…
4:06 A quick refresher
8:15 Hershey kisses of molten metal
10:46 Plugging in the easy stuff
11:40 Cathode follower buffers
15:25 Cathode follower buffers… again
17:42 Catho… I’m gonna stop you right there…
19:27 Blinkenlights!
21:50 Soft start
24:58 A massive milestone!
26:42 “My name is Sue! How do you do?! Now you gonna die!”