Can I fix an e Bay spares repairs ZX81 with an Ali Express Oscilloscope

I finally got myself a new Oscilloscope but not wanting to spend to much money I found one on AliExpress for only 40. I also recently bought a ZX81 from eBay that was sold for spares or repairs so can I use one to fix the other Thanks to Lee from MoreFunMakingIt for sending me the composite mod for the ZX81 along with same for the Atari 2600 and a Kung Fu cart for the C64 Make sure to go check out his channel and don t forget to say CRG sent you :) CRG Twitter CRG Patreon CRG Discord Music Cathode Ray Gun by Momentvm Chapters 00:00 Intro 01:02 First look and unboxing 04:57 PSU test 06:26 Opening the ZX81 07:13 Look around the ZX81 board 08:35 Powering up 09:55 Testing with the scope 13:06 Composite mod and thanks to MoreFunMakingIt 19:22 What s on the screen 19:44 M