Usagi Electric | Vacuum Tube Computer P.25 – New VFDs for the Processor @UsagiElectric | Uploaded April 2022 | Updated October 2024, 3 hours ago.
On every big project, there's a point where you have to redo some work previously done, and that’s exactly what we’re doing in this episode. The IV-15 VFDs I used as indicators for the Processor just aren’t working right, so let’s take a look at what I did wrong, how we’re going to fix it, and then get to work cutting new boards and soldering them up!

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

Thanks for watching!

Chapters
0:00 Intro
2:20 Firing the processor up again
4:23 The problem
5:22 IV-15 vs. 6977
7:03 What I got wrong (and how to fix it)
8:59 Testing on the breadboard
11:26 Making new boards
13:43 Giving the new VFDs a workout
15:10 Storing to our 1-bit memory module
17:09 Outro
18:20 Bunny!