It so happens that I just finished cleaning up my old, (t)rusty Keytronic 03602 -series, manufactured in Ireland (!!) in April 1994... And it's... it's... Bjoo-ty-ful! Didn't take any before&after -shots but when I started out, the condition wasn't far off what's seen in that howtogeek tutorial... Crumbs, dog hair, cat hair, human hair, gollops of juice, a few servings of chocolate and ice cream etc. was discovered; now, however, the thing is as good as new! Keytronic FTW!