mit 750 tube network vs ss- how to tell difference

I need to know too. I just received a pair of MIT "CVT MH 750 Shotgun Terminator" Serial #s R & L1086. They have the (HEAVY) network very near the speaker end of the cable. I'll need to put the network on a plastic bucket or milk crate,so they don't just dangle off my Montana SPIIs.......
I don't know if these are new enough to have the tube/ss option.......

It should say so on the network if it's tube, it nothing's mentioned it is for solid state.

It should say so on the network if it's tube, it nothing's mentioned it is for solid state.