HP 97 latest PCB with blown capacitor : Alive !

[mfleming]

It's not terribly difficult to rebuild the battery pack, the hardest part being the separation of the two halves which seem to be heat welded together. A little time with a jeweler's saw or Xacto knife will do the trick. Substitute subC NiCds with flattops and welded tabs can be found. I soldered tabs together and sealed the case with electrical tape on a couple of packs, but was thinking of rigging a pressure contact arrangement so the cells could be removed and charged separately.

Restoration is a great way to while away the time