Where can I get crystals for a recruiting radio beacon? (Fallout 4)

I took them out when I deactivated the laser traps, in the Training Camp location there is something there, I don’t remember the third word, at the weapons depot, there is also a second power armor there.

morion2
Thanks for the tip

Sometimes a "crystal decanter" spawns in boxes, you can extract crystals from it. And a wandering tradeswoman sells a whole lot, but it is very expensive ...

From the cameras, I poured 2 crystals. And it seems like you can find it in hospitals from a microscope.

there are a lot of laser traps in this place (note)