All the parts for MetroLux II are still made, at least for awhile. There are probes, baseboard probes (MRS), and MetroLuxes (MetroLuxi?). Anyway, parts and repairs are available. If Calumet can't help you, you can call the factory and leave a message at 415.452.9923. If that doesn't work, I can help. I have good connections with this group.
If the switched output is not working, it could be that the previous owner blew the fuse. There are two fuses in a MetroLux, one for the electonics and one for the switched output. I don't recommend you fixing it yourself unless you are very knowledgeable with electronics. It is not 'user serviceable'. It is soldered in.
There is no switched output for a safelight. This makes the unit OFF when it is off and it doesn't have safelight power running through it. If you want this feature, I'd recommend you make a relay box to do it or rearrange your safelights so they are not so bright on your easel. I did the latter.
Let me know if I can help.
--LG--