Moin, I got an 828 "Sickentank" that I bought as a parts carrier. When taking stock, I noticed that the lamp was completely untampered and technically new. I was able to recondition the surface, the technology only needed one cleaning. Unfortunately, the tank had once received a bad hit on the pressure gauge and was badly depressed. With a self-made pulling device from a defective manometer from Chinese production, I was able to carefully pull the nozzle out again. I pulled the socket out again with a threaded rod that was inserted into the old manometer. A plastic pipe is used for support by pulling very carefully and checking frequently, I was able to quickly and completely eliminate the damage.
Moin, Thank you for your praise. It is always a challenge to achieve a good result with little effort in such work. I trained as an agricultural machinery mechanic. There is a principle in the profession that is also very helpful with old lamps. 1. That has to be done 2. It must not cost anything and 3. it has to last forever, so that the farmer is satisfied.