I picked up this $18 oscilloscope the other day because I was curious how good something this cheap can actually be. For me, the ultimate test to see if something is useful is to try to fix a broken 8-bit computer with it... so let's do exactly that!
-- Links
FNIRSI DSO152: (Currently $24 as of making of this video, price will fluctuate, was $18 a couple weeks ago)
https://www.aliexpress.us/item/3256805458469353.html
Zoyi ZT-703S (2 channel model seen in my video, currently $75 shipped)
https://www.aliexpress.us/item/3256806251266312.html
Zoyi ZT-702S (1 channel model, currently $56 shipped)
https://www.aliexpress.us/item/3256805784882899.html
Hantek 2C42 (currently $98 shipped, the model I use and have reviewed)
https://www.aliexpress.us/item/3256803457359304.html