I recently found a cheap oscilloscope that’s perfect for retro gamers looking to verify that their arcade boards (via superguns) and RGB SCART cables are safe to use! This scope won’t replace something like a Rigol for development use, but it’s small, battery-powered and works well for testing!
Cheap Scope*: https://amzn.to/3TJQ5O4
*Links to alternatives that should be the same are below. If possible, use the exact link above though!
Console5 SCART: https://console5.com/store/catalogsearch/result/?q=scart
Resistor Kit: https://amzn.to/3EGChzp
Rigol DS1054: https://amzn.to/2TPwoGv
5BNC Breakout Cable: https://amzn.to/3ApOki8
More info on using Oscilloscope with retro gaming equipment can be found on the following page: https://www.retrorgb.com/oscilloscope.html
*Alternatives that SHOULD be re-brands of the one I showed in this video – Only purchase if the above link is out of stock: