Possible HHC door prize?

[rprosperi]

Thanks very much for supporting HHC, even if you can't make it yourself. Hopefully, you can attend a future HHC and attendees can thank you in person.

This note is from the Datamath Calculator Museum on the TI-57 page:

Quote:Early in production (about wk 36 year 1977) TI changed the battery pack and the related connector and charger from the SR-51-II style to the TI-55 style. The battery packs are not compatible, don't use a BP6 with a AC9132 charger !

Maybe this is related to the unusual battery pack you mentioned? Anhow, I just wanted to add the note to be sure some lucky winner doesn't kill it, assuming all TI's use the same power adapter.