I spent most of my time working on a sick PET 2001-8. The display board failed. Click for larger view.
Pic of the friend resistor. I replaced this component, but we did not have a TIP29 that I think was the reason the resistor fried. This resistor has been replaced before. Click for larger view.
Ian taught me how to fix Apple Macintosh 400K disk drives that had become gunked up, a common problem. These are the 4 screws and a bracket one should remove to separate the drive halves to get to the gunked grease. Click link below for more pictures.
Our VCFed workshops are one of the best things our club does, if you want to learn more about fixing old hardware they're a must-go. Contact me if you're interested.