Posts: 50
Threads: 19
Joined: Jan 1970
I was afraid of that. Probably like others, I set the calculator aside instead of continuing to pay what seemed like a lot of money in the 1970s for replacement packs from HP. As I remember they didn't last very long and would leak. To keep it from damaging the terminals I removed it and tossed it, plastics and all. Didn't think in those days about HP discontinuing support, but understand it doesn't make sense for anyone to do a reproduction for such low demand product. I will watch Ebay and the Forum Classifieds. For some reason I really like the 21 and want to start using it again.
Thanks a lot for the response Jeff.
Dan