Entries by Nick Drudge

Custom Expansion Bay Adapter

    Using a USB card reader every time I want to transfer files is annoying. Let’s shove a card reader into my PC with some cardboard! My PC case only has 5.25in bays, and I have only 3.5in card readers. Instead of buying an adapter, I just make one with cardboard. It sure looks […]

September 22, 2015 by

TI-55 Calculator Battery Replacement

  How I made my TI-55 calculator work. THE THING HAS AN LED BUBBLE DISPLAY. Want to breath new life into an old calculator? The TI-55 was one of the best in the line of scientific calculators with statistical capabilities back in the 70’s. The TI-55 has an LED-stick using LED chips mounted and bonded to the printed […]

September 20, 2015 by

HP 97 Calculator Restore

Look an HP 97 Calculator! A what? Batteries are shot and the internals are a bit wonk, I fix the inside, make it look great on the outside, and power it up! Then promptly set it on a shelf again. Sorry HP 97 Calculator.  

August 15, 2015 by