Broken WW2 Headphones - Restoration

In this video I’m restoring a pair of antique German headphones. I’ve found these headphones at an online auction for $30 and I thought they look pretty cool for a restoration project. Unfortunately they didn’t work anymore. I measured the coils and three of the four were broken. That fact put this little project to a whole new challenge. It required a ton of research to completely understanding every single detail of its function to remake the coils and such. After some trial and error I managed to remake the broken bobbins and rewind the coils. The tricky part was that both coils are connected with eachother at the beginning of the windings in the core. I had to make a special jig, so I could clamp both coils when winding the second one. The original paint had some kind of a structure in it. It was black matte with some kind of a hammertone pattern. Unfortunately I was not able to find such paint, so I went with regular black matte. To not loose the were fine writings and logo I only