- Pison Organizer II (first PDA!) - Timex LED clock from 1979 - 1970's LED watches and 1960's electo-mechanical watches - 1947 Philco radio - TI-59 calculator. Sony Sobax (nixie + delay line) calculator. - I'm assuming the Kaypro, Sol-20, & TRS-80 4P all work but haven't tried in a while. - Sega Genesis (just play w/it w/my son last weekend) - My favorite, my Textronix 4051 & flat-bed plotter finally succumbed to entropy, helped along by water damage in my garage due to the fact that even w/two people the thing was a PITA to move