Ok, lets see:
This is a Balao boat, or "Embarcación de flota clase Balao", in spanish. You can see two balls below. Those are the sonar components.
Right on the deck you can see that T-shaped thing. It looks like the air search radar to me, since it only spins while on the surface and you can't turn it on and off like the surface search radar.
And on the mast, there you have the periscopes and the surface search radar antenna (not visible here)