[Milsurplus] Radar ID

[David Edsall]

Hi all,

Back in the mid 1950s I served in a AAA outfit above the Golden Gate 
entrance, in radar maintenance and communications.
We had a radar set that was used to direct the 90mm guns: two vans, one with 
the the tracking antenna on the roof and all the electronics, the other for 
maintenance; the surveillance (acquisition) radar was on a separate mount a 
short distance away.
Does anyone know what it might have been?
I think it was something like AN/MPS-??,
but I have no idea what the number was and can't find a reference to it.
Thanks in advance,
73, David W1TDD