TI Bubble Memory?

Today I found a couple of multibus cards made by TI. One of them is marked TM990/210. In addition to a TI TMS9916NL LSIC, it has six large yellow "blocks" on it that I THINK may be bubble memories. They're about 1 1/4" square and about 7/16" thick and are marked "TIB 0203S, 23May80 -1, MSK=627573, 8B, 958-S-40, 24-164-11". They're in flattened out metal cylinders with a black epoxy looking material in the center. There are seven leads coming out of each end and there is what looks like a small plastic transistor clipped to the side of the package. It looks like a transistor but only has two leads so I'm guessing that it's probably a temperatrure sensor. Does anyone know if these are bubble memories? I've had TI bubble memories before but they didn't look anything like this. Anyone know what these cards are? the second one is marked TM990/310. It has three TI TMS9901s on it along with many SSI ICs. Joe