Each part of the superstructure has an inner x-shaped core. Because of that you have to watch out where you drill the holes for the wires. Every part has a special alignment: f.e. The red access door is on the right of the main door.
Completed electronic. I added furthermore two parts and realized current sources for both LED circuits. So is the current for both circuits independent from the battery voltage. 🙂
One of the 3 short pulses in red. Unfortunately I found no exact information about the original pulse configuration during service… („Künstlerische Freiheit“🙂)