Primitive Technology.

Cody's Lab. Not specifically low tech but there are hundreds of videos of him mining, making greenhouses, and beekeeping

Does Look Mum No Computer count?

Primitive Technology, the channel that inspired all those faked terrible "building stuff in the woods" channels, but the original is really good.

Low-Tech Magazine shows up on here occasionally, I've enjoyed their articles.

I'd also recommend Kris Harbour Natural Building on YouTube.

Anyone watch attoparsec on YouTube?

I saw him at open sauce last year, and got to type out a tweet using his typesetter's keyboard:

https://m.youtube.com/watch?v=vdP_sTMOWYo&t=7s

Clickspring is currently recreating the antikythera mechanism using period accurate tools and technology, which is low tech if you consider that it was high tech for the ancient greeks.

Black Forager, whom I mostly follow on F-book.

Van Oak Props.

It's nice to see the creativity that goes into creating props. I also follow watch a few others that also go over props and haunted house builds.

Post Apocalyptic Inventor

Camping with Steve is pretty great

I love the low tech cycling subculture at yt - bikepackers, mechanics, tinkerers...

Like Path less pedaled and BikeFarmer.

They show how the bikes should be simple, mechanical machines that are bombproof and easy to repair not some high tech racing monsters.

Does solar.lowtechmagazine.com count? Or is that just considered standard reading on slrpnk.net?

Does Joseph's machines count as low tech?

Or do you mean more primitive tech?