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I accidentally skipped several levels in my research and bought a helium leak detector. It was located in France so I had to ask seller to arrange a shipment to Czech republic and.. it arrived yesterday! It is Alcatel ASM 51, 30 years old machine, but if it is working it will be much mightier tool than I actually need 😉 Ron Soyland offered me remote assistance in firing it up (to be honest, I would be hardly able to get it to work without him, thank Ron!), so with little luck it must work!
It weights 150kg, 40kg weight the roughing pumps inside..
The tube with black cap in the left down corner is main inlet port, the tube in the center is cold trap nitrogen trap (I wont use that). Next to the trap is a diffusion pump (with a fan on it). 3 orange things on the left are electronic valves.
Update 5. July 2012:
No idea what is this.. Update: it is a molecular sieve trap, thanks to Lindsay!