USB Charger for Woodstock

[Bill Duncan]

I wonder if the reserve battery pack charger could be 3d printed and if anyone would actually be interested. I just use alkaline batteries these days with the original holder modified. I use a piece of tin foil on the positive terminal of the cell on the left, as the cells don't have the flat terminals that the original nicads have.

The battery holder on the right was 3d printed with a lid.

While the HP-29C is arguably one of the least capable calculators in my collection, I still love using it. My girlfriend at the time had an HP-27 and I sold my TI-58 and TI-59 to become an RPN convert.. LoL..

I'm still friends with her, and RPN..