TI Bubble Memory?

From: Peter C. Wallace <pcw_at_mesanet.com>
Date: Sat Apr 17 10:41:41 2004

On Fri, 16 Apr 2004, Joe R. wrote:

> 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...


Peter Wallace
Received on Sat Apr 17 2004 - 10:41:41 BST