17 Apr
2004
17 Apr
'04
10:58 a.m.
At 08:41 AM 4/17/04 -0700, Peter Wallace
wrote:
On Fri, 16 Apr 2004, Joe R. wrote:
No I'm not. I had just got home with them and haven't checked them to be
sure but they look like Multibus. Let me go check.
Nope, it's not. It's not as wide as a Multibus card and the contacts and
contact row are narrower. Rats!
Joe
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
Are you sure they are Multibus? TM990 sounds more like they go in TI 9900
series backplane...