Arduino Based Low Voltage Vacuum Tube Tester

In this episode we take a stab at building a vacuum tube tester that gives us some proper, usable data! Granted, it’s all at super low voltages, just 24V in this case, but that actually works out perfectly for the types of circuits that we commonly build. Most importantly though, this was all done for extremely cheap – in total, there is less then $30 worth of parts involved in the entire build!

Schematic, gerber and code files here:
https://github.com/Nakazoto/Low-Voltage-Tube-Tester

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Timelapse Music:
Artist: C7, Jamphibious
Title: Mega Man 3 "Shadow's Lounge"
https://ocremix.org/remix/OCR02710

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

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Thanks for watching!

Chapters
0:00 Intro
2:47 Using the tester
4:08 Testing the “bad” tubes
6:43 Tester construction
9:33 Arduino code
12:32 Building the PCB
14:46 Testing the finished version
18:04 Outro
19:17 Bunny!