On the screenshot above, video is being grabbed from real hardware during debug process
 
 
Alexander Mikhaylovich Kokovin is a Russian video blogger known for repairing various vintage electronics, mostly Soviet reel-to-reel video tape recorders. These are not easy to fix, require complex and precise adjustments, possible only with a lot of knowledge and skills, but he mastered this art well enough enough. He also enjoys tinkering with simpler devices, such as old TV sets, 8- and 16-bit home computers, various audio equipment.
 
 
Alexander is often criticized for not building complex things from scratch, only restoring existing ones. And it was true until it found this book
Here ). Hope you enjoyed it.