I wanted to stay in the time period with my light but I am also really happy with the light that is coming from my B+M Cyo Premium.
Now I could have gone for the chrome version but that one only has 60 Lux instead of the 80 Lux of the premium.
So some modding was in order;
Schwinn (?) TMI headlight above and the Cyo below. It should fit inside but maybe I'll need to cut away part of the support. (Spoiler: I did)
So after some cutting and sanding of the metal front ring of the old light it finally fit inside. Just needed to wire everything up and see if it works.
Taped off the rear light connectors for now because otherwise they create a short and it won't work.
I just used some foam blocks that I had lying around to fix it in place but perhaps I will replace it with something more permanent later.
For now I still want to tidy up the wires and replace them with slightly thicker ones.
End resultYou won't know it is a modern light untill you switch it on.
Edit: