Enemies (HP-34C and TI-58C) side by side

[DANTONVB]

I just finished refurbishing an HP-34C I bought dead. After complete restoration, with new wiring from battery connector to power PCB, it is now working as new.

The TI-58C I bought new in 1981 when I was attending second year of Mechanical Engineering. I restored it two years ago, as it was not turning on and the keyboard was missing keystrokes.

Now both are working again side by side.