So my Tek 2236 grew some problems in the Display control section. Luckily I stumbled across a Russian C1-.94 (speak S1-94) with some DIN-5 Plug for input. I asked the guys on Fingers’ Forum for help and voilà some parts out of the grab box and my adapter is ready:
Here I still ha a little GND connection problem, fixed now (the C1-94 is floating atm, I’ll replace the old calble asap)
Thanks again shpank, Henning and Reutron!