A very nice man made a video showing improvements to the notorious and cheap "XR2206" (likely fake IC) kits, but his schematic files seem to have vanished!
His name was Roger or something, from "Kainka Labs" - does anyone possess his modified schematics? I have a kit here and want to built it using his mods at build time.
By the way:
~ Yes, I know there are other options available, re kits etc.
~ No, I don't want them - I am simply asking for the above info, or related, if you have it.
Here's his video:
Cheers