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Homemade Transistor Demonstration

3 videos recommended on HN
YouTube
2 HN users recommended this demo2 months2013–2021 score 2.5
Years with an HN recommendation, 2007–2026

HN likes Ellsworth as a hardware tinkerer, and cites the video as proof that transistors can be made with low-tech, DIY fabrication.

Jeri Ellsworth demonstrates a PMOS transistor she fabricated herself in a home chip lab. She shows some of its electrical characteristics.

“One of my favorite channels as she's done many projects I've had interest in.” (HN, 2016)

1 strong recommendations · 1 recommendations · 2 citations · Demos · intermediate

4 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@DanBC Jul 2013 Recommends
on HN thread Valve's flat management structure 'like high school'
Jeri Ellsworth, for people who don't know, does really interesting hardware stuff. "TSA body imaging at home" ( [link] ) "Home made EL wire" ( [link] ) "Recording Audio onto floppy discs" ( [link] ) "Home made transistor" ( [this video] ) "Homebrew NMOS transistor" ( [link] )
Homemade transistor demo by a hardware tinkerer.

Citations, criticism and jokes

@justaaron May 2019 Cites it
on HN thread Ask HN: Do you think technology progress will flatten out 100 years from now
up to the point that we see actual infrastructural collapse. I mean, I've seen Jeri Elsworth bake her own transistors in the oven and stuff (each one being about the size of your hand) but somehow I can't picture a chip fab based upon such transistors... call me old fashioned. [this video]
Homemade transistors used as example of low-tech fabrication.

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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