Helix Labs Bubble Memory Card

[Brian A. Davis <badavis@nbnet.nb.ca>]

Hi;

I just saw a Helix Labs 128K bubble memory card for sale. I know the
bubble memory systems failed to become popular due to being slow and
power hungry, but I was interested in buying it more out of curiosity.

Can anyone with experience using bubble memory technology on the Apple
II platform pass on a little information? Assuming the card is still
working, do I need specific software to access and store information
on the card? Does the card require being in a particular expansion
slot? The card looks like it has onboard EPROM software.

Any help would be appreciated.

Thanks,

BrianD