Hi there,
I've got an HP-45 from back then (from my father's job, when he got an "upgrade" to a TI-59). The battery is dead and gone since long, and I also cannot find the AC adapter anymore.
Recently I've acquired an HP-67 with (renewed, working) battery pack and AC adapter.
Now my question: can I use HP-67 battery and adapter on my HP-45?
regards,
chris