Woodstock Display Upgrade (a sight for sore eyes)

[markhen]

Thanks to all for the kudos, this is a fun project.

Since my first post I have been using the modified 25 as my "daily driver" and I must say it is my favorite calc by far :-) I made a small circuit board that allows me to pack 1800mAh LiPo battery (2P1S) into the original case (pic attached), charged externally (naturally...). So far I have several weeks of daily use without needing to recharge.

I haven't made firm plans to produce this as a kit yet. Since the components are expensive, it's not clear to me how many people would be willing to pay something like the cost of a working HP25 on that auction site to add this display functionality? It was definitely worth it to me, but I am the proud father ;-)