Help to identify these components from HP-3081a

[coitboy2000]

I have a couple of old HP-3081a terminals I purchased more for the components than anything else. I am not aware of any schematic which is available and was wondering what these two components are. Are they a pulse transformer perhaps. The photos show the same component on both terminals, one in a sealed package, the other open.

Any help appreciated.

Cheers

Richard