Yes, I need LEDs! And it turns out my dad has also some 4028s in his drawer which will be great for lighting up the channels! Loot woot! The russian version is called k176id1. I might rewire the potentiometers at one point, they are arranged a bit weird.

Current setup:

1 3 5 7
0 2 4 8

planned setup:

0 1 2 3
4 5 6 7 

Or not.