Look like diode based sources in the mid IR, Home built. I'd need to take a look "under the hood" to tell you. Pop the seven lid screws and shoot me a picture. The one Swagelok port is for gas or vacuum, which really suggests something oddball. Whats in there needs to stay dry and dust free, so put the lid right back on after the pics.
Steve
Last edited by mixedgas; 10-04-2019 at 11:42.
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...