Yep, love Adrian's Digital Basement. Lots of Commodore 64 repair videos and I feel like I'm learning more about the hardware from watching the repairs.
Lots of videos using early Apple gear, but it's not exclusively Apple. HN might know him for his FrogFind search engine, designed for use on vintage computers with resource constrained browsers. I really enjoyed his recent videos getting the Apple IIGS online, and testing Wolfenstein 3D on the IIGS with increasingly fast IIGS CPU accelerator boards. Once you get to around 14 Mhz it actually looks playable...
On a similar theme: Action Retro:
https://www.youtube.com/c/ActionRetro
Lots of videos using early Apple gear, but it's not exclusively Apple. HN might know him for his FrogFind search engine, designed for use on vintage computers with resource constrained browsers. I really enjoyed his recent videos getting the Apple IIGS online, and testing Wolfenstein 3D on the IIGS with increasingly fast IIGS CPU accelerator boards. Once you get to around 14 Mhz it actually looks playable...